Subclavian nerve

Subclavian nerve
Subclavian nerve
	Diagram of the right brachial plexus. Subclavian nerve labelled at top right.
	The right brachial plexus with its short branches, viewed from in front. Subclavian nerve not visible.
Details
From	upper trunk (C5-C6) of brachial plexus
To	sometimes the accessory phrenic nerve
Innervates	subclavius muscle
Identifiers
Latin	nervus subclavius
TA98	A14.2.03.013
TA2	6412
FMA	65280
	Anatomical terms of neuroanatomy [edit on Wikidata]

The subclavian nerve or nerve to the subclavius is small branch of the upper trunk of the brachial plexus where C5 and C6 join.^[1] It contains axons derived from the ventral rami of the fifth (C5) and sixth (C6) cervical nerves. The subclavian nerve provides motor innervation to the subclavius muscle.

Branch forming accessory phrenic nerve

The subclavian nerve can variably give rise to a branch which innervates the diaphragm called the accessory phrenic nerve.^[2] The accessory phrenic nerve may rather branch from the ansa cervicalis. This nerve usually joins with the phrenic nerve before innervating the diaphragm.

Additional images

Diagram of the brachial plexus. The subclavian nerve can be seen branching from where C5 and C6 join to form the upper trunk. (Label at top right).
The right brachial plexus. The subclavian nerve is not visible, but the muscle it innervates called the subclavius can be seen underneath the clavicle.

References

^ Rubin, Michael (28 September 2016). Netter's concise neuroanatomy. Netter, Frank H. (Frank Henry), 1906-1991 (Updated ed.). Philadelphia, PA. p. 310. ISBN 978-0-323-48091-8. OCLC 946698976.{{cite book}}: CS1 maint: location missing publisher (link)
^ Loukas, Marios; Kinsella, Christopher R.; Louis, Robert G.; Gandhi, Sagar; Curry, Brian (November 2006). "Surgical anatomy of the accessory phrenic nerve". The Annals of Thoracic Surgery. 82 (5): 1870–1875. doi:10.1016/j.athoracsur.2006.05.098. ISSN 1552-6259. PMID 17062263.

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[1] Rubin, Michael (28 September 2016). Netter's concise neuroanatomy. Netter, Frank H. (Frank Henry), 1906-1991 (Updated ed.). Philadelphia, PA. p. 310. ISBN 978-0-323-48091-8. OCLC 946698976.{{cite book}}: CS1 maint: location missing publisher (link)

[2] Loukas, Marios; Kinsella, Christopher R.; Louis, Robert G.; Gandhi, Sagar; Curry, Brian (November 2006). "Surgical anatomy of the accessory phrenic nerve". The Annals of Thoracic Surgery. 82 (5): 1870–1875. doi:10.1016/j.athoracsur.2006.05.098. ISSN 1552-6259. PMID 17062263.

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