Muscle
|
Location |
Origin |
Insertion |
Artery |
Nerve |
Action |
Antagonist
|
Number of occurrences in a standard human body
|
platysma
|
Neck, Clavicular, Right, left |
base of mandible |
inferior clavicle and fascia of chest |
branches of submental artery, branches of suprascapular artery |
cervical branch of facial nerve [CNVII] |
tenses skin of neck |
masseter, temporalis
|
2
|
sternocleidomastoid
|
Neck, Clavicular, Right, left |
sternal head: manubrium sterni
clavicular head: medial portion of clavicle
|
mastoid process of temporal bone, superior nuchal line |
occipital artery, superior thyroid artery |
motor: accessory nerve sensory: cervical plexus |
acting alone: tilts head to its own side, rotates head so face is turned towards opposite side
acting together: flexes neck, raises sternum, assists in forced inspiration
|
??
|
2
|
digastric, anterior belly
|
Neck,Suprahyoid,
Right/left
|
digastric fossa (mandible)
|
intermediate tendon (lesser horn of hyoid bone) |
submental branch of facial artery
|
mandibular nerve [CNV3] via mylohyoid nerve
|
opens jaw when masseter and temporalis are relaxed |
??
|
???
|
digastric, posterior belly
|
Neck,Suprahyoid,
Right/left
|
mastoid process of temporal bone
|
intermediate tendon (lesser horn of hyoid bone) |
occipital artery
|
facial nerve [CNVII]
|
opens jaw when masseter and temporalis are relaxed |
??
|
???
|
stylohyoid
|
Neck,Suprahyoid,
Right/left
|
styloid process of temporal bone |
greater horn of hyoid bone |
occipital artery |
facial nerve [CNVII] |
elevates hyoid during swallowing |
??
|
???
|
mylohyoid
|
Neck,Suprahyoid, Right/left |
mylohyoid line of mandible |
pharyngeal raphe |
mylohyoid branch of inferior alveolar artery |
mylohyoid nerve, from inferior alveolar branch of mandibular nerve [CNV3] |
raises oral cavity floor, elevates hyoid, depresses mandible |
??
|
???
|
geniohyoid
|
Neck,Suprahyoid,
Right/left
|
mandibular symphysis |
anterior surface of body of hyoid bone |
|
C1 via hypoglossal nerve |
elevates hyoid and tongue upward during swallowing |
??
|
???
|
sternohyoid
|
Neck,Infrahyoid,
Right/left
|
sternum, manubrium |
hyoid bone |
superior thyroid artery |
ansa cervicalis |
depresses hyoid |
??
|
???
|
sternothyroid
|
Neck,Infrahyoid,
Right/left
|
sternum, manubrium |
thyroid cartilage |
superior thyroid artery |
ansa cervicalis |
depresses larynx, may slightly depress hyoid |
??
|
???
|
thyrohyoid
|
Neck,Infrahyoid,
Right/left
|
thyroid cartilage |
hyoid bone |
superior thyroid artery |
C1 |
depress hyoid |
??
|
???
|
omohyoid
|
Neck,Infrahyoid,
Right/left
|
upper border of scapula |
hyoid bone |
inferior thyroid artery |
ansa cervicalis |
depresses larynx, depresses and moves to side hyoid |
??
|
???
|
longus colli
|
Neck, Anterior |
transverse processes of vertebrae C3, C4, C5, and C6 |
anterior arch of atlas |
ascending pharyngeal artery, vertebral artery |
C2, C3, C4, C5, C6 |
flexes neck and head |
??
|
???
|
longus capitis
|
Neck, Anterior |
anterior tubercles of transverse processes of vertebrae C3, C4, C5, and C6 |
basilar part of occipital bone |
?? |
C1, C2, C3/C4 |
flexes neck at atlanto-occipital joint |
??
|
???
|
rectus capitis anterior
|
Neck, Anterior |
atlas |
occipital bone |
?? |
C1 |
flexes neck at atlanto-occipital joint |
??
|
???
|
rectus capitis lateralis
|
Neck, Anterior |
upper surface of transverse process of atlas |
under surface of jugular process of occipital bone |
?? |
C1 |
sidebens at atlanto-occipital joint |
??
|
???
|
scalenus anterior
|
Neck, Lateral,
Right/left
|
cervical vertebrae C3-C6 |
first rib |
inferior thyroid artery, ascending cervical artery |
ventral ramus of C5, C6 |
when neck is fixed, elevates first rib to aid in breathing; when rib is fixed, bends neck forward and sideways and rotates it to opposite side |
??
|
???
|
scalenus medius
|
Neck, Lateral,
Right/left
|
cervical vertebrae C2-C6 |
first rib |
inferior thyroid artery, ascending cervical artery |
ventral rami of third to eighth cervical spinal nerves |
elevates first rib, rotates neck to opposite side |
??
|
???
|
scalenus posterior
|
Neck, Lateral,
Right/left
|
cervical vertebrae C4 – C6, transverse processes |
second rib |
ascending cervical artery and superficial cervical artery |
C6, C7, C8 |
elevates second rib, tilts neck to same side |
??
|
???
|
levator scapulae
|
Neck, Lateral,
Right/left
|
posterior tubercles of transverse processes of C1 – C4 |
superior part of medial border of scapula |
dorsal scapular artery |
cervical nerve (C3, C4) and dorsal scapular nerve (C5) |
elevates scapula, tilts glenoid cavity inferiorly by rotating scapula |
serratus anterior
|
???
|
rectus capitis lateralis
|
Neck, Lateral,
Right/left
|
upper surface of transverse process of atlas (C1) |
under surface of jugular process of occipital bone |
?? |
C1 |
laterally flexes neck, stabilises atlanto-occipital joint |
??
|
???
|
obliquus capitis superior
|
Neck, Lateral,
Right/left
|
lateral mass of atlas |
lateral half of inferior nuchal line |
?? |
suboccipital nerve |
flexes head to same side |
??
|
???
|
obliquus capitis inferior
|
Neck, Lateral,
Right/left
|
spinous process of axis |
lateral mass of atlas |
?? |
suboccipital nerve |
rotates neck |
??
|
???
|
rectus capitis posterior minor
|
Neck,
Posterior
|
tubercle on posterior arch of atlas (C1) |
medial part of inferior nuchal line of occipital bone and surface between it and foramen magnum |
?? |
a branch of dorsal primary division of suboccipital nerve |
sensory organ for neck position, also extends head at neck |
??
|
???
|
rectus capitis posterior major
|
Neck,
Posterior
|
spinous process of axis (C2) |
inferior nucheal line of occipital bone |
occipital artery |
dorsal ramus of C1 (suboccipital nerve) |
rotates and extends head to same side |
??
|
???
|
semispinalis capitis
|
Neck,
Posterior
|
articular processes of C4-C6; transverse processes of C7 and T1-T7 |
occipital bone between superior and inferior nuchal lines |
?? |
greater occipital nerve |
extends head |
??
|
???
|
longissimus capitis
|
Neck,
Posterior
|
articular processes of C4-C7; transverse processes of T1-T5 |
posterior margin of mastoid process |
lateral sacral artery |
posterior branch of spinal nerve |
laterally: flexes head and neck to same side
bilaterally: extends vertebral column
|
??
|
???
|
splenius capitis
|
Neck,
Posterior
|
nuchal ligament, spinous processes of C7-T6 |
mastoid process |
?? |
C3, C4 |
extends, rotates, and laterally flex head |
??
|
???
|
obliquus capitis superior
|
Neck,
Posterior
|
lateral mass of atlas |
lateral half of inferior nuchal line |
?? |
suboccipital nerve |
flexes head to same side |
??
|
???
|
obliquus capitis inferior
|
Neck,
Posterior
|
spinous process of axis |
lateral mass of atlas |
?? |
suboccipital nerve |
rotates neck |
??
|
???
|
rectus abdominis
|
Torso, Abdomen, right/left |
pubic symphysis, pubic crest |
xiphoid process, costal cartilages of ribs 5-7 |
inferior epigastric artery, superior epigastric artery; contributions from posterior intercostal arteries, subcostal arteries, and deep circumflex arteries |
intercostal nerves, subcostal nerve |
flexes trunk, compresses abdominal organs, aids in expiration |
erector spinae
|
2
|
external oblique
|
Torso, Abdomen, right/left |
external surfaces of ribs 5-12 |
linea alba, pubic tubercle, anterior half of iliac crest |
lower posterior intercostal arteries, subcostal artery, deep circumflex iliac artery |
motor: intercostal nerves (T7-T11), subcostal nerve sensory: iliohypogastric nerve |
bilateral: flexes trunk, expiration, compresses abdominal organs
unilateral: flexes trunk to same side, rotates trunk to opposite side
|
|
2
|
internal oblique
|
Torso, Abdomen, right/left |
anterior two-thirds of iliac crest, iliopectineal arch, thoracolumbar fascia |
inferior borders of ribs 10–12, pubic crest |
lower posterior intercostal arteries, subcostal artery, superior epigastric artery, inferior epigastric artery, superficial circumflex iliac artery, deep circumflex iliac artery, posterior lumbar arteries |
intercostal nerves (T7-T11), subcostal nerve, iliohypogastric nerve, ilioinguinal nerve |
bilateral: flexes trunk, expiration, compresses abdominal organs
unilateral: flexes trunk to same side, rotates trunk to opposite side
|
|
2
|
transversus abdominis
|
Torso, Abdomen, right/left |
internal surface of costal cartilage of ribs 7–12, thoracolumbar fascia, anterior two-thirds of iliac crest, iliopectineal arch |
linea alba, aponeurosis of internal oblique muscle, pubic crest |
lower posterior intercostal arteries, subcostal artery, superior epigastric artery, inferior epigastric artery, superficial circumflex iliac artery, deep circumflex iliac artery, posterior lumbar arteries |
intercostal nerves T7-T11, subcostal nerve, iliohypogastric nerve, ilioinguinal nerve |
bilateral: compresses abdominal organs, expiration
unilateral: rotates trunk to same side
|
|
2
|
pyramidalis
|
Torso, Abdomen, right/left |
pubic symphysis, pubic crest |
linea alba |
inferior epigastric artery |
subcostal nerve |
tenses linea alba |
|
2
|
quadratus lumborum
|
Torso, Abdomen, right/left |
iliac crest, iliolumbar ligament |
inferior border of rib 12, transverse processes of L1-L4 |
lumbar, median sacral, iliolumbar, subcostal arteries |
subcostal nerve, anterior rami of spinal nerves L1-L4 |
bilateral: fixes rib 12 during inspiration, extends trunk
unilateral: flexes trunk to same side
|
|
2
|
iliocostalis
|
Torso, Back, right/left |
sacrum, iliac crest, thoracolumbar fascia, spinous processes |
ribs |
lateral sacral artery |
posterior branch of spinal nerve |
extends/flexes vertebral column |
rectus abdominis
|
2
|
longissimus
|
Torso, Back, right/left |
transverse process |
transverse process |
lateral sacral artery |
posterior branch of spinal nerve |
extends/flexes vertebral column |
rectus abdominis
|
2
|
spinalis
|
Torso, Back, right/left |
spinous process |
spinous process |
lateral sacral artery |
posterior branch of spinal nerve |
extends/flexes vertebral column |
rectus abdominis
|
2
|
latissimus dorsi
|
Torso, Back, right/left |
spinous processes of thoracic T6-T12, thoracolumbar fascia, iliac crest and inferior 3 or 4 ribs |
floor of intertubercular groove of humerus |
subscapular artery, dorsal scapular artery |
thoracodorsal nerve |
pulls forelimb dorsally and caudally |
deltoid, trapezius
|
2
|
semispinalis thoracis (dorsi)
|
Torso, Back, right/left |
transverse processes of sixth to tenth thoracic vertebrae |
spinous processes of upper four thoracic vertebrae and lower two cervical vertebrae |
|
posterior branch of spinal nerve |
extends/rotates vertebral column |
|
2
|
semispinalis cervicis (colli)
|
Torso, Back, right/left |
transverse processes of upper five or six thoracic vertebrae |
spinous processes, cervical, from axis to fifth |
|
posterior branch of spinal nerve |
extends/rotates vertebral column |
|
2
|
semispinalis capitis (complexus)
|
Torso, Back, right/left |
transverse process of lower cervical and higher thoracal columna |
spinous process, area between superior nuchal line and inferior nuchal line |
|
greater occipital nerve |
extends head |
|
2
|
multifidus
|
Torso, Back, right/left |
sacrum, erector spinae aponeurosis, PSIS, and iliac crest |
spinous process |
|
posterior branch of spinal nerve |
stabilizes vertebrae in local movements of vertebral column |
|
2
|
rotatores
|
Torso, Back, right/left |
transverse process |
spinous process |
posterior branch |
|
|
2
|
interspinales
|
Torso, Back, right/left |
spinous process |
|
posterior rami of spinal nerves |
extends, flexes, and rotates vertebral column |
|
2
|
intertransversarii
|
Torso, Back, right/left |
transverse process |
transverse process above |
|
laterally flexes trunk |
|
2
|
splenius capitis
|
Torso, Back, right/left |
nuchal ligament, spinous process of C7-T6 |
mastoid process of temporal bone, occipital bone |
|
C3, C4 |
extends, rotates, and laterally flexes head |
|
2
|
splenius cervicis
|
Torso, Back, right/left |
spinous processes of T3-T6 |
transverse processes of C1, C2, C3 |
|
C5, C6 |
|
|
2
|
external intercostal 1-11
|
Torso, Chest (left/right) |
inferior border of rib (above) |
superior border of rib (below) |
intercostal arteries |
intercostal nerves |
inhalation |
internal
|
22
|
internal intercostal 1-11
|
Torso, Chest (left/right) |
inferior border of rib (above) |
superior border of rib (below) |
intercostal arteries |
intercostal nerves |
holds ribs steady |
external
|
22
|
innermost intercostal 1-11
|
Torso, Chest |
inferior border of rib (above) |
superior border of rib (below) |
intercostal arteries |
intercostal nerves |
elevates ribs, expiration |
|
22
|
subcostales
|
Torso, Chest |
inner surface of one rib |
inner surface of second or third rib above, near its angle |
intercostal arteries |
intercostal nerves |
|
|
2
|
transversus thoracis
|
Torso, Chest |
costal cartilages of last 3–4 ribs, body of sternum, xiphoid process |
ribs/costal cartilages 2–6 |
intercostal arteries |
intercostal nerves |
depresses ribs |
|
2
|
levatores costarum
|
Torso, Chest |
transverse processes of C7 to T12 vertebrae |
superior surfaces of ribs immediately inferior to preceding vertebrae |
|
dorsal rami – C8, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11 |
assists in elevation of thoracic rib cage |
|
2
|
serratus posterior inferior
|
Torso, Chest |
vertebrae T11 – L3 |
inferior borders of 9th through 12th ribs |
intercostal arteries |
intercostal nerves |
depresses lower ribs, aiding in expiration |
|
2
|
serratus posterior superior
|
Torso, Chest |
nuchal ligament (or ligamentum nuchae) and spinous processes of vertebrae C7 through T3 |
upper borders of 2nd through 5th ribs |
2nd through 5th intercostal nerves |
elevates ribs, aiding in inspiration |
|
2
|
diaphragm
|
Torso, Chest |
septum transversum, pleuroperitoneal folds, inner abdominal wall |
|
pericardiacophrenic artery, musculophrenic artery, inferior phrenic arteries |
phrenic and lower intercostal nerves |
breathing |
|
2
|
coccygeus
|
Torso, Pelvis |
sacrospinous ligament |
coccyx |
|
sacral nerves: S4, S5 or S3-S4 |
closes back part of pelvic outlet |
|
2
|
iliococcygeus
|
Torso, Pelvis, Levator ani |
ischial spine, posterior part of tendinous arch of pelvic fascia |
coccyx and anococcygeal raphe |
inferior gluteal artery |
levator ani nerve (S4)
|
supports organs in pelvic cavity |
|
2
|
pubococcygeus
|
Torso, Pelvis, Levator ani |
back surface of pubis, anterior part of obturator fascia |
coccyx and sacrum |
controls urine flow, contracts during orgasm |
|
2
|
puborectalis
|
Torso, Pelvis, Levator ani |
lower part of pubic symphysis |
- |
S3, S4. levator ani nerve |
inhibits defecation |
|
2
|
sphincter ani externus
|
Torso,
Perineum
|
- |
- |
inferior rectal artery |
S4 and twigs from inferior anal nerves of pudendal nerve |
keeps anal canal and anus closed, aids in expulsion of feces |
-
|
2
|
sphincter ani internus
|
Torso,
Perineum
|
- |
- |
pudendal nerve |
-
|
2
|
transversus superficialis perinei
|
Torso,
Perineum, Superficial perineal pouch
|
anterior surface of ischial tuberosity |
central point of perineum |
perineal artery |
pudendal nerve |
constricts urethra (maintains urinary continence), constricts vagina (women) |
|
2
|
bulbospongiosus
|
Torso,
Perineum, Superficial perineal pouch
|
perineal raphe |
- |
empties urethra (men)
clenches vagina (women)
|
|
2
|
ischiocavernosus
|
Torso,
Perineum, Superficial perineal pouch
|
ischial tuberosity |
crus of penis (men)
crus of clitoris (women)
|
assists bulbospongiosus |
|
2
|
transversus perinei profundus
|
Torso,
Perineum, Deep perineal pouch
|
inferior ramus of ischium |
its fellow of opposite side |
|
pudendal nerve |
constricts urethra (maintains urinary continence), constricts vagina (women) |
|
2
|
sphincter urethrae externus
|
Torso,
Perineum, Deep perineal pouch
|
junction of inferior rami of pubis and ischium about 1.25 – 2 cm, and from neighboring fascia |
|
perineal branch of pudendal nerve (S2, S3, S4) |
constricts urethra, maintains urinary continence |
|
2
|
trapezius
|
Upper limb, Vertebral column, Right?/Left? |
down midline, external occipital protuberance, nuchal ligament, medial part of superior nuchal line, spinous processes of vertebrae C7-T12 |
at shoulders, lateral third of clavicle, acromion of scapula, spine of scapula |
transverse cervical artery |
motor: accessory nerve [CNXI]
sensory: cervical nerves C3 and C4
|
retracts and elevates scapula |
serratus anterior
|
??
|
latissimus dorsi
|
Upper limb, Vertebral column, Right?/Left? |
spinous processes of thoracic T6-T12, thoracolumbar fascia, iliac crest and inferior 3 or 4 ribs |
floor of intertubercular groove of humerus |
subscapular artery, dorsal scapular artery |
thoracodorsal nerve |
pulls forelimb dorsally and caudally |
deltoid, trapezius
|
??
|
rhomboids
|
Upper limb, Vertebral column, Right?/Left? |
nuchal ligaments, spinous processes of C7-T5 vertebrae |
medial border of scapula |
dorsal scapular artery |
dorsal scapular nerve (C4 and C5) |
retracts scapula and rotates it to depress glenoid cavity, fixes scapula to thoracic wall |
serratus anterior
|
??
|
rhomboid major
|
Upper limb, Vertebral column, Right?/Left? |
spinous processes of T2 to T5 vertebrae |
medial border of scapula, inferior to insertion of rhomboid minor
|
??
|
rhomboid minor
|
Upper limb, Vertebral column, Right?/Left? |
nuchal ligaments and spinous processes of C7- to T1 vertebrae |
medial border of scapula, superior to insertion of rhomboid major
|
??
|
levator scapulae
|
Upper limb, Vertebral column, Right?/Left? |
posterior tubercles of transverse processes of C1 – C4 vertebrae |
superior part of medial border of scapula |
cervical nerve (C3, C4) and dorsal scapular nerve (C5) |
elevates scapula, tilts glenoid cavity inferiorly by rotating scapula
|
??
|
pectoralis major
|
Upper limb,Thoracic walls, Right?/Left? |
clavicular head: anterior surface of medial half of clavicle sternocostal head: anterior surface of sternum, superior six costal cartilages |
intertubercular groove of humerus |
pectoral branch of thoracoacromial artery |
lateral pectoral nerve, medial pectoral nerve clavicular head: C5 and C6 sternocostal head: C7, C8 and T1 |
adducts and medially rotates humerus, draws scapula anteriorly and inferiorly clavicular head: flexes humerus sternocostal head: extends humerus |
|
??
|
pectoralis minor
|
Upper limb,Thoracic walls, Right?/Left? |
3rd to 5th ribs, near their costal cartilages |
medial border and superior surface of coracoid process of scapula |
medial pectoral nerve (C8, T1) |
stabilizes scapula by drawing it inferiorly and anteriorly against thoracic wall |
|
??
|
subclavius
|
Upper limb,Thoracic walls, Right?/Left? |
first rib |
subclavian groove of clavicle |
thoracoacromial artery, clavicular branch |
subclavian nerve |
depresses clavicle |
|
??
|
serratus anterior
|
Upper limb,Thoracic walls, Right?/Left? |
fleshy slips from outer surface of upper 8 or 9 ribs |
costal surface of medial margin of scapula |
upper part: lateral thoracic artery
lower part:thoracodorsal artery
|
long thoracic nerve (from roots of brachial plexus C5, C6, C7) |
protracts and stabilises scapula, assists in upward rotation |
rhomboid major, rhomboid minor, trapezius
|
??
|
deltoid
|
Upper limb, Shoulder, Right/left |
clavicle, acromion, spine of scapula |
deltoid tuberosity of humerus |
primarily posterior circumflex humeral artery |
axillary nerve |
abducts, flexes, and extends shoulder |
latissimus dorsi
|
2
|
teres major
|
Upper limb, Shoulder, Right/left |
posterior surface of inferior angle of scapula |
medial lip of intertubercular sulcus of humerus |
subscapular artery, circumflex scapular artery |
lower subscapular nerve (segmental levels C5 and C6) |
internally rotates humerus |
|
2
|
Rotator cuff- supraspinatus
|
Upper limb, Shoulder, Right/left |
supraspinous fossa of scapula |
superior facet of greater tubercle of humerus |
suprascapular artery |
suprascapular nerve |
abducts and stabilises humerus |
infraspinatus, teres minor, pectoralis major, latissimus dorsi
|
2
|
Rotator cuff-infraspinatus
|
Upper limb, Shoulder, Right/left |
infraspinous fossa of scapula |
middle facet of greater tubercle of humerus |
suprascapular artery, circumflex scapular artery |
laterally rotates, adducts, and stabilises humerus |
subscapularis, pectoralis major, latissimus dorsi
|
2
|
Rotator cuff-teres minor
|
Upper limb, Shoulder, Right/left |
lateral border of scapula |
inferior facet of greater tubercle of humerus |
posterior circumflex humeral artery, circumflex scapular artery |
axillary nerve |
laterally rotates and adducts humerus |
subscapularis, pectoralis major, latissimus dorsi
|
2
|
Rotator cuff-subscapularis
|
Upper limb, Shoulder, Right/left |
subscapular fossa of scapula |
lesser tubercle of humerus |
subscapular artery |
upper subscapular nerve, lower subscapular nerve (C5, C6) |
medially rotates humerus, stabilizes shoulder |
infraspinatus, teres minor
|
2
|
coracobrachialis
|
Upper Limb, Arm, Anterior compartment, right/left |
coracoid process of scapula |
medial surface of humerus |
brachial artery |
musculocutaneous nerve |
flexes and adducts shoulder |
|
2
|
biceps brachii
|
Upper Limb, Arm, Anterior compartment, right/left |
short head: coracoid process of scapula long head: supraglenoid tubercle |
radial tuberosity, bicipital aponeurosis |
musculocutaneous nerve (lateral cord: C5, C6, C7) |
flexes elbow, supinates forearm |
triceps brachii
|
2
|
brachialis
|
Upper Limb, Arm, Anterior compartment, right/left |
anterior surface of humerus (mainly distal half) |
coronoid process of ulna, tuberosity of ulna |
radial recurrent artery |
musculocutaneous nerve |
flexes elbow
|
2
|
triceps brachii
|
Upper Limb, Arm, Posterior compartment, right/left |
long head: infraglenoid tubercle of scapula lateral head: posterior humerus (above radial sulcus) medial head: posterior humerus - (below radial sulcus) |
olecranon of ulna |
deep artery of arm |
radial nerve |
extends forearm
long head: adducts shoulder
medial head: does not function at shoulder
|
biceps brachii, brachialis
|
2
|
anconeus
|
Upper Limb, Arm, Posterior compartment, right/left |
lateral epicondyle of humerus |
lateral surface of olecranon, superior part of posterior ulna |
deep artery of arm, interosseous recurrent artery |
radial nerve (C7, C8, and T1) |
partly blended with triceps, extends forearm, stabilises elbow, abducts ulna during pronation |
|
2
|
pronator teres
|
Upper limb, Forearm, Anteriror compartment, Superficial, Right/left |
humeral head: medial epicondyle of humerus (common flexor tendon) ulnar head: coronoid process of ulna |
pronator tuberosity of radius |
ulnar artery, radial artery |
median nerve |
pronates forearm, flexes elbow |
supinator
|
2
|
flexor carpi radialis
|
Upper limb, Forearm, Anteriror compartment, Superficial, Right/left |
medial epicondyle of humerus (common flexor tendon) |
bases of second metacarpal, base of third metacarpal |
radial artery |
flexes and abducts wrist |
extensor carpi radialis brevis, extensor carpi radialis longus
|
2
|
palmaris longus
|
Upper limb, Forearm, Anteriror compartment, Superficial, Right/left |
palmar aponeurosis |
ulnar artery |
flexes wrist |
extensor carpi radialis brevis, extensor carpi radialis longus, extensor carpi ulnaris
|
2
|
flexor carpi ulnaris
|
Upper limb, Forearm, Anteriror compartment, Superficial, Right/left |
pisiform, hook of hamate, base of fifth metacarpal |
muscular branches of ulnar nerve |
flexes and adducts wrist |
extensor carpi ulnaris
|
2
|
flexor digitorum superficialis
|
Upper limb, Forearm, Anteriror compartment, Superficial, Right/left |
medial epicondyle of humerus (common flexor tendon), parts of radius and ulna |
bases of middle phalanges 2, 3, 4, and 5 |
median nerve |
flexes fingers (primarily at proximal interphalangeal joints) |
extensor digitorum
|
2
|
pronator quadratus
|
Upper limb, Forearm, Anteriror compartment, Deep, Right/left |
medial anterior surface of ulna |
lateral anterior surface of radius |
anterior interosseous artery |
anterior interosseous nerve (median nerve) |
weakly pronates forearm |
supinator
|
2
|
flexor digitorum profundus
|
Upper limb, Forearm, Anteriror compartment, Deep, Right/left |
ulna |
distal phalanges |
lateral belly: anterior interosseous nerve (median nerve)
medial belly: muscular branches of ulnar nerve
|
flexes wrist, flexes interphalangeal joints |
extensor digitorum
|
2
|
flexor pollicis longus
|
Upper limb, Forearm, Anteriror compartment, Deep, Right/left |
middle half of volar surface of radius, interosseus membrane |
base of distal phalanx of thumb |
anterior interosseous nerve (median nerve) (C8, T1) |
flexes thumb |
extensor pollicis longus, extensor pollicis brevis
|
2
|
extensor digitorum
|
Upper limb, Forearm, Posterior compartment, Superficial, Right/left |
lateral epicondyle of humerus (common extensor tendon) |
2nd–5th phalanges |
posterior interosseous artery |
posterior interosseous nerve (C7, C8) |
extends hand, extends fingers |
flexor digitorum superficialis, flexor digitorum profundus
|
2
|
extensor digiti minimi
|
Upper limb, Forearm, Posterior compartment, Superficial, Right/left |
anterior surface of lateral epicondyle of humerus (common extensor tendon) |
extensor expansion, located at base of proximal phalanx on dorsal side |
extends little finger at all joints |
flexor digiti minimi brevis
|
2
|
extensor carpi ulnaris
|
Upper limb, Forearm, Posterior compartment, Superficial, Right/left |
lateral epicondyle of humerus (common extensor tendon), ulna |
5th metacarpal |
ulnar artery |
extends and adducts wrist |
flexor carpi ulnaris
|
2
|
Mobile wad-brachioradialis
|
Upper limb, Forearm, Posterior compartment, Superficial, Right/left |
lateral supracondylar ridge of humerus |
radial styloid process (distal radius) |
radial recurrent artery |
radial nerve |
flexes forearm, pronates forearm when supine, supinates forearm when prone |
|
2
|
Mobile wad- extensor carpi radialis longus
|
Upper limb, Forearm, Posterior compartment, Superficial, Right/left |
2nd metacarpal |
radial artery |
extends wrist joint, abducts hand at wrist |
flexor carpi radialis
|
2
|
Mobile wad- extensor carpi radialis brevis
|
Upper limb, Forearm, Posterior compartment, Superficial, Right/left |
anterior surface of lateral epicondyle of humerus (common extensor tendon) |
base of 3rd metacarpal |
posterior interosseus nerve
|
2
|
supinator
|
Upper limb, Forearm, Posterior compartment, Deep, Right/left |
lateral epicondyle of humerus, supinator crest of ulna, radial collateral ligament, annular ligament |
lateral proximal shaft of radius |
radial recurrent artery |
posterior interosseus nerve (C7, C8) |
supinates forearm |
pronator teres, pronator quadratus
|
2
|
extensor indicis
|
Upper limb, Forearm, Posterior compartment, Deep, Right/left |
ulna |
index finger (extensor hood) |
|
extends index finger, wrist |
|
2
|
Anatomical snuff box-abductor pollicis longus
|
Upper limb, Forearm, Posterior compartment, Deep, Right/left |
ulna |
first metacarpal |
posterior interosseous artery |
posterior interosseous nerve (C7, C8) |
abducts and extends thumb |
adductor pollicis
|
2
|
Anatomical snuff box-extensor pollicis brevis
|
Upper limb, Forearm, Posterior compartment, Deep, Right/left |
radius, interosseous membrane of forearm |
proximal phalanx of thumb |
extends thumb at metacarpophalangeal joint |
flexor pollicis longus, flexor pollicis brevis
|
2
|
Anatomical snuff box- extensor pollicis longus
|
Upper limb, Forearm, Posterior compartment, Deep, Right/left |
ulna, interosseous membrane of forearm |
distal phalanx of thumb |
extends thumb (metacarpophalangeal and interphalangeal)
|
2
|
opponens pollicis
|
Upper limb, Hand, Lateral volar, Thenar |
trapezium, transverse carpal ligament |
metacarpal bone of thumb on its radial side |
superficial palmar arch |
median nerve |
opposes thumb |
|
2
|
flexor pollicis brevis
|
Upper limb, Hand, Lateral volar, Thenar |
trapezoid, flexor retinaculum |
thumb, proximal phalanx |
median nerve, deep branch of ulnar nerve (medial head) |
flexes thumb |
extensor pollicis longus, extensor pollicis brevis
|
2
|
abductor pollicis brevis
|
Upper limb, Hand, Lateral volar, Thenar |
flexor retinaculum of hand, scaphoid and trapezium |
radial base of proximal phalanx of thumb and thumb extensors |
median nerve |
abducts thumb |
adductor pollicis
|
2
|
adductor pollicis
|
Upper limb, Hand, Lateral volar, Thenar |
transverse head: anterior body of third metacarpal oblique head: bases of second and third metacarpals and adjacent trapezoid and capitate bones |
medial side of base of proximal phalanx of thumb and ulnar sesamoid |
deep palmar arch |
deep branch of ulnar nerve (T1) |
adducts thumb at carpometacarpal joint |
abductor pollicis longus, abductor pollicis brevis
|
2
|
palmaris brevis
|
Upper limb, Hand, Medial volar |
flexor retinaculum (medial), palmar aponeurosis |
palm |
palmar metacarpal artery |
superficial branch of ulnar nerve |
wrinkle skin of palm |
|
2
|
hypothenar- abductor digiti minimi
|
Upper limb, Hand, Medial volar |
pisiform |
base of proximal phalanx of 5th digit on ulnar or medial side |
ulnar artery |
deep branch of ulnar nerve |
abducts little finger |
|
2
|
hypothenar- flexor digiti minimi brevis
|
Upper limb, Hand, Medial volar |
hamate bone |
little finger |
deep branch of ulnar nerve |
flexes little finger |
extensor digiti minimi
|
2
|
hypothenar- opponens digiti minimi
|
Upper limb, Hand, Medial volar |
hook of hamate, flexor retinaculum |
medial border of 5th metacarpal |
deep branch of ulnar nerve (C8 and T1) |
draws 5th metacarpal anteriorly and rotates it, bringing little finger (5th digit) into opposition with thumb |
|
2
|
lumbrical
|
Upper limb, Hand, Intermediate |
flexor digitorum profundus |
extensor expansion |
superficial palmar arch, common palmar digital arteries, deep palmar arch, dorsal digital artery |
deep branch of ulnar nerve, median nerve |
flex metacarpophalangeal joints, extend interphalangeal joints |
|
2
|
dorsal interossei
|
Upper limb, Hand, Intermediate |
metacarpals |
proximal phalanges |
dorsal metacarpal artery, palmar metacarpal artery |
deep branch of ulnar nerve |
abduct fingers |
palmar interossei
|
2
|
palmar interossei
|
Upper limb, Hand, Intermediate |
palmar metacarpal artery |
adduct fingers |
dorsal interossei
|
2
|
iliopsoas
|
Lower Limb, Iliac region |
iliac fossa (iliacus), sacrum (iliacus), spine (T12, L1, lumbar vertebra, psoas major, psoas minor)[9] |
lesser trochanter of femur (psoas major), shaft below lesser trochanter (iliacus), tendon of psoas major & femur (iliacus)[9] |
medial femoral circumflex artery, iliolumbar artery |
femoral nerve, lumbar nerves L1, L2 |
flexes hip (psoas major/minor, iliacus), spine rotation (psoas major/minor) |
gluteus maximus, posterior compartment of thigh
|
2
|
psoas major
|
Lower Limb, Iliac region |
transverse processes, bodies and intervertebral discs of T12-L5 vertebrae |
lesser trochanter of femur |
iliolumbar artery |
lumbar plexus via anterior branches of L1, L2, L3[10]
|
flexes and rotates laterally thigh |
gluteus maximus
|
2
|
psoas minor
|
Lower Limb, Iliac region |
side of T11+L1 and IV intervertebral disc |
Pectineal line and iliopectineal eminence |
iliolumbar artery, lumbar arteries |
L1 |
weakly flexes trunk flexor
|
2
|
iliacus
|
Lower Limb, Iliac region |
iliac fossa |
lesser trochanter of femur |
medial femoral circumflex artery, Iliolumbar artery |
femoral nerve (L2, L3[10]) |
flexes hip[11]
|
2
|
tensor fasciae latae
|
Lower limb, Gluteal, Left/right |
iliac crest |
iliotibial tract |
primarily lateral circumflex femoral artery, superior gluteal artery |
superior gluteal nerve (L4, L5) |
flexes thigh, medially rotates thigh, stabilises torso |
|
2
|
gluteal- gluteus maximus
|
Lower limb, Gluteal, Left/right |
gluteal surface of ilium, lumbar fascia, sacrum, sacrotuberous ligament |
gluteal tuberosity of femur, iliotibial tract |
superior gluteal artery, inferior gluteal artery |
inferior gluteal nerve (L5, S1, S2 nerve roots) |
externally rotates and extends hip joint, supports extended knee through iliotibial tract, chief antigravity muscle in sitting |
Iliacus, psoas major, psoas minor
|
2
|
gluteal- gluteus medius
|
Lower limb, Gluteal, Left/right |
gluteal surface of ilium, under gluteus maximus |
greater trochanter of femur |
superior gluteal artery |
superior gluteal nerve (L4, L5, S1 nerve roots) |
abduction of hip; preventing adduction of hip Medial rotation of thigh |
lateral rotator group
|
2
|
gluteal- gluteus minimus
|
Lower limb, Gluteal, Left/right |
gluteal surface of ilium, under gluteus medius
|
2
|
gluteal-lateral rotator group
|
Lower limb, Gluteal, Left/right |
at or below acetabulum of ilium |
on or near greater trochanter of femur |
inferior gluteal artery, lateral sacral artery, superior gluteal artery |
obturator nerve, piriformis nerve, nerve to quadratus femoris |
laterally rotates hip |
gluteus minimus, gluteus medius
|
2
|
gluteal- piriformis
|
Lower limb, Gluteal, Left/right |
sacrum |
greater trochanter |
piriformis nerve (S1 and S2 nerve roots)[12] |
laterally rotates (outward) thigh |
|
2
|
gluteal- obturator externus
|
Lower limb, Gluteal, Left/right |
obturator foramen and obturatory membrane |
medial surface of greater trochanter of femur |
obturator artery |
posterior branch of obturator nerve (L3, L4) |
adduct thigh, rotate laterally thigh |
|
2
|
gluteal-superior gemellus
|
Lower limb, Gluteal, Left/right |
ischial spine
|
|
|
nerve to obturator internus (L5, S1, S2) |
|
|
2
|
gluteal- obturator internus
|
Lower limb, Gluteal, Left/right |
ischiopubic ramus, obturator membrane |
medial surface of greater trochanter of femur |
|
abducts & rotates laterally thigh, stabilises hip during walking |
|
2
|
gluteal- inferior gemellus
|
Lower limb, Gluteal, Left/right |
ischial tuberosity |
obturator internus tendon |
|
nerve to quadratus femoris (L4, L5, S1) |
laterally rotates thigh |
|
2
|
gluteal- quadratus femoris
|
Lower limb, Gluteal, Left/right |
intertrochanteric crest |
inferior gluteal artery |
|
|
2
|
articularis genus
|
Lower limb, Thigh, Anterior compartment |
femur |
suprapatellar bursa |
femoral artery |
femoral nerve |
pulls suprapatellar bursa during extension of knee |
|
2
|
sartorius
|
Lower limb, Thigh, Anterior compartment |
superior to anterior superior iliac spine |
medial side of upper tibia in pes anserinus |
flexes, laterally rotates, and abducts thigh, flexes and medially rotates leg |
|
2
|
quadriceps femoris
|
Lower limb, Thigh, Anterior compartment |
combined rectus femoris and vastus muscles |
patella and tibial tuberosity via patellar tendon |
extends knee, flexes hip (rectus femoris only) |
hamstring
|
2
|
rectus femoris
|
Lower limb, Thigh, Anterior compartment |
anterior inferior iliac spine and exterior surface of bony ridge which forms iliac portion of acetabulum |
knee extension; hip flexion
|
2
|
vastus lateralis
|
Lower limb, Thigh, Anterior compartment |
greater trochanter, intertrochanteric line, and linea aspera of femur |
extends knee
|
2
|
vastus intermedius
|
Lower limb, Thigh, Anterior compartment |
anterior surface of femur
|
2
|
vastus medialis
|
Lower limb, Thigh, Anterior compartment |
anteromedial surface of femur
|
2
|
hamstring - biceps femoris
|
Lower limb, Thigh, Posterior compartment/hamstring |
long head: ischial tuberosity
short head: linea aspera of femur[13]
|
head of fibula[13] articulating with back of lateral tibial condyle |
inferior gluteal artery, perforating arteries, popliteal artery |
long head: medial (tibial) part of sciatic nerve
short head: lateral (common fibular) part of sciatic nerve[13]
|
flexes knee joint, laterally rotates leg at knee (when knee is flexed), extends hip joint (long head only)[13]
|
quadriceps femoris
|
2
|
hamstring- semitendinosus
|
Lower limb, Thigh, Posterior compartment/hamstring |
ischial tuberosity[13] |
pes anserinus |
inferior gluteal artery, perforating arteries |
sciatic nerve[13] (tibial, L5, S1, S2) |
flexes knee, extends hip, medially rotates leg at knee[13]
|
22
|
hamstring-semimembranosus
|
Lower limb, Thigh, Posterior compartment/hamstring |
medial surface of tibia[13] |
profunda femoris, gluteal artery |
sciatic nerve[13]
|
|
adductor muscles of the hip
|
Lower limb, Thigh, Medial compartment |
pubis |
femur, tibia |
obturator artery |
obturator nerve |
adducts hip |
gluteus medius, gluteus minimus
|
2
|
gracilis
|
Lower limb, Thigh, Medial compartment |
inferior pubic ramus[14] |
tibia (pes anserinus) |
anterior branch of obturator nerve[14] |
adducts hip, flexes hip, medially rotates knee[14]
|
2
|
pectineus
|
Lower limb, Thigh, Medial compartment |
superior pubic ramus[14] |
lesser trochanter, linea aspera |
femoral nerve and obturator nerve (medial compartment)[14] |
flexes and adducts hip[14]
|
2
|
adductor brevis
|
Lower limb, Thigh, Medial compartment |
anterior surface of inferior pubic ramus[14] |
lesser trochanter and linea aspera of femur |
anterior branch of obturator nerve[14] |
adducts hip[14]
|
2
|
adductor longus
|
Lower limb, Thigh, Medial compartment |
pubic body just below pubic crest |
middle third of linea aspera |
adducts and medially rotates hip[14]
|
2
|
adductor magnus
|
Lower limb, Thigh, Medial compartment |
[14] |
femur, adductor tubercle of femur |
posterior branch of obturator nerve (adductor) and tibial part of sciatic nerve (vertical head)[14][15] |
adducts hip[14]
|
2
|
tibialis anterior
|
Lower limb, Leg, Anterior Compartment |
body of tibia |
medial cuneiform and first metatarsal bones of foot |
anterior tibial artery |
deep fibular nerve |
dorsiflexes and inverts foot |
fibularis longus, gastrocnemius, soleus, plantaris, tibialis posterior
|
2
|
extensor hallucis longus
|
Lower limb, Leg, Anterior Compartment |
middle portion of anterior surface of fibula, anterior surface of interosseous membrane |
dorsal side of base of distal phalanx of hallux |
extends big toe, assists in dorsiflexion of foot at ankle, weakly inverts foot |
flexor hallucis longus, flexor hallucis brevis
|
2
|
extensor digitorum longus
|
Lower limb, Leg, Anterior Compartment |
lateral condyle of tibia, superior ¾ of interosseous membrane |
middle and distal phalanges of lateral four digits |
extension of toes and ankle |
flexor digitorum longus, flexor digitorum brevis
|
2
|
fibularis tertius
|
Lower limb, Leg, Anterior Compartment |
distal anterior surface of fibula |
dorsal surface of fifth metatarsal |
dorsi flexes and everts foot |
|
2
|
triceps surae
|
Lower Limb, Leg, Posterior compartment, Superficial |
|
achilles tendon, calcaneus |
posterior tibial artery |
tibial nerve |
plantarflexes ankle |
|
2
|
gastrocnemius
|
Lower Limb, Leg, Posterior compartment, Superficial |
medial condyle and lateral condyle of femur |
calcaneus |
sural arteries |
tibial nerve from sciatic nerve, specifically, nerve roots S1, S2 |
plantarflexes ankle, flexes knee (minor) |
tibialis anterior
|
2
|
soleus
|
Lower Limb, Leg, Posterior compartment, Superficial |
fibula, medial border of tibia (soleal line) |
tendo calcaneus |
tibial nerve, specifically, nerve roots L5–S2 |
plantarflexes ankle
|
2
|
plantaris
|
Lower Limb, Leg, Posterior compartment, Superficial |
lateral supracondylar ridge of femur above lateral head of gastrocnemius |
calcaneal tendon (medial side, deep to gastrocnemius tendon) |
tibial nerve |
plantarflexes ankle, flexes knee
|
2
|
popliteus
|
Lower Limb, Leg, Posterior compartment, Deep |
middle facet of lateral surface of lateral femoral condyle |
posterior tibia under tibial condyles |
popliteal artery |
tibial nerve |
medially rotates and flexes knee |
|
2
|
tarsal tunnel- flexor hallucis longus
|
Lower Limb, Leg, Posterior compartment, Deep |
posterior surface of upper 1/3 of fibula |
base of distal phalanx of hallux |
fibular artery (peroneal branch of posterior tibial artery |
tibial nerve, S1, S2 nerve roots |
flexes all joints of big toe, plantarflexes ankle |
extensor hallucis longus
|
2
|
tarsal tunnel- flexor digitorum longus
|
Lower Limb, Leg, Posterior compartment, Deep |
medial tibia |
distal phalanges of lateral four digits |
posterior tibial artery |
tibial nerve |
flexes toes |
extensor digitorum longus, extensor digitorum brevis
|
2
|
tarsal tunnel- tibialis posterior
|
Lower Limb, Leg, Posterior compartment, Deep |
tibia, fibula |
navicular, medial cuneiform |
inverts foot, plantarflexes foot at ankle |
tibialis anterior
|
2
|
fibularis longus
|
Lower Limb, Leg, Lateral compartment |
fibula |
first metatarsal, medial cuneiform |
fibular artery |
superficial fibular nerve |
plantarflexes and everts ankle |
tibialis anterior
|
|
fibularis brevis
|
Lower Limb, Leg, Lateral compartment |
fibula |
fifth metatarsal |
fibular artery |
superficial fibular nerve |
plantarflexes and everts ankle |
tibialis posterior
|
|
extensor digitorum brevis
|
Lower limb, Foot, Dorsal, left/right |
calcaneus |
toes |
|
deep fibular nerve |
extends digits 2, 3, and 4 |
flexor digitorum longus, flexor digitorum brevis
|
2
|
extensor hallucis brevis
|
Lower limb, Foot, Dorsal, left/right |
base of proximal phalanx of big toe |
|
deep fibular nerve |
extends big toe |
flexor hallucis brevis
|
2
|
dorsal interossei of foot
|
Lower limb, Foot, Dorsal, left/right |
metatarsals |
proximal phalanges |
|
lateral plantar nerve(fourth interosseous space: superficial branch others: deep branch), first and second interossei: lateral branch of deep fibular nerve |
abducts toes |
plantar interossei
|
2
|
abductor hallucis
|
Lower limb, plantar, first layer, left/right |
medial process of calcaneus, flexor retinaculum, plantar aponeurosis |
medial side of base of proximal phalanx of first digit |
|
medial plantar nerve |
abducts hallux |
adductor hallucis
|
2
|
flexor digitorum brevis
|
Lower limb, plantar, first layer, left/right |
medial process of calcaneus, plantar aponeurosis, intermuscular septa |
middle phalanges of digits 2–5 |
|
flexes lateral four toes |
extensor digitorum longus, extensor digitorum brevis
|
2
|
abductor digiti minimi
|
Lower limb, plantar, first layer, left/right |
plantar aponeurosis |
phalanges of fifth toe |
lateral plantar artery |
lateral plantar nerve (S1, S2) |
flexes and abducts fifth toe |
flexor digiti minimi brevis
|
2
|
quadratus plantae
|
Lower limb, plantar, second layer, left/right |
calcaneus |
tendons of flexor digitorum longus |
|
lateral plantar nerve (S1, S2) |
flexes distal interphalangeal joints (assists flexor digitorum longus) |
|
2
|
lumbricals
|
Lower limb, plantar, second layer, left/right |
tendons of flexor digitorum longus |
medial surface of extensor expansion of proximal phalanges of lateral four toes |
lateral plantar artery, plantar arch, four plantar metatarsal arteries |
lateral plantar nerve (lateral three lumbricals) and medial plantar nerve (first lumbrical) |
maintain extension of digits at interphalangeal joints |
|
2
|
flexor hallucis brevis
|
Lower limb, plantar, Third layer, left/right |
plantar surface of cuneiforms, plantar calcaneocuboid ligament, long plantar ligament
|
medial head: medial sesamoid bone of metatarsophalangeal joint, proximal phalanx of great toe
lateral head: lateral sesamoid bone of metatarsophalangeal joint, proximal phalanx of great toe
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medial plantar nerve |
flexes big toe |
extensor hallucis longus
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2
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adductor hallucis
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Lower limb, plantar, Third layer, left/right |
oblique head: proximal ends of middle 3 metatarsals
transverse head: metatarsophalangeal joints, ligaments of lateral 3 toes
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lateral side of base of proximal phalanx of big toe, sesamoid |
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lateral plantar nerve |
adducts big toe |
abductor hallucis
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2
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flexor digiti minimi brevis
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Lower limb, plantar, Third layer, left/right |
fifth metatarsal bone |
phalanx of fifth toe |
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lateral plantar nerve (superficial branch) |
extends and adducts fifth toe |
abductor digiti minimi
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2
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plantar interossei
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Lower limb, plantar, Fourth layer, left/right |
tendons of plantar Interossei |
proximal phalanges III-V - muscles cross the metatarsophalangeal joint of toes III-V so the insertions correspond with the origin and there is no crossing between toes |
plantar arch, dorsal metatarsal artery |
lateral plantar nerve |
adducts toes 3 - 5, strengthens transverse arch |
dorsal interossei
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2
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dorsal interossei
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Fourth layer |
metatarsals |
proximal phalanges |
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lateral plantar nerve |
abducts toes |
plantar interossei
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2
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