Dense regular connective tissue

Dense regular connective tissue (DRCT) provides connection between different tissues in the human body. The collagen fibers in dense regular connective tissue are bundled in a parallel fashion. DRCT is divided into white fibrous connective tissue and yellow fibrous connective tissue, both of which occur in two forms: cord arrangement and sheath arrangement.^[1]

In cord arrangement, bundles of collagen and matrix are distributed in regular alternate patterns. In sheath arrangement, collagen bundles and matrix are distributed in irregular patterns, sometimes in the form of a network. It is similar to areolar tissue, but in DRCT elastic fibers are completely absent.^[2]

Structures formed

An example of their use is in tendons,^[3] which connect muscle to bone and derive their strength from the regular, longitudinal arrangement of bundles of collagen fibers.
Ligaments bind bone to bone and are similar in structure to tendons.^[4]
Aponeuroses are layers of flat, broad tendons that join muscles and the body parts the muscles act upon, whether it be bone or muscle.^[5]

Functions

Dense regular connective tissue has great tensile strength that resists pulling forces especially well in one direction.

DRCT has a very poor blood supply, which is why damaged tendons and ligaments are slow to heal.

References

^ Stecco, Carla. "Dense Connective Tissue - an overview". Science Direct. Retrieved 19 October 2020.
^ Nassari, Sonya; Duprez, Delphine; Fournier-Thibault, Claire (23 March 2007). "Non-myogenic Contribution to Muscle Development and Homeostasis: The Role of Connective Tissues". Front Cell Dev Biol. 5 (22): 22. doi:10.3389/fcell.2017.00022. PMC 5362625. PMID 28386539.
^ "Dense regular connective tissue". www.pc.ctc.edu. Archived from the original on 2009-09-25. Retrieved 2009-10-16.
^ "What Are Ligaments?". WebMD. Retrieved 2020-09-30.
^ "Aponeurosis". IMAIOS. Retrieved 2020-09-30.

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[1] Stecco, Carla. "Dense Connective Tissue - an overview". Science Direct. Retrieved 19 October 2020.

[2] Nassari, Sonya; Duprez, Delphine; Fournier-Thibault, Claire (23 March 2007). "Non-myogenic Contribution to Muscle Development and Homeostasis: The Role of Connective Tissues". Front Cell Dev Biol. 5 (22): 22. doi:10.3389/fcell.2017.00022. PMC 5362625. PMID 28386539.

[3] "Dense regular connective tissue". www.pc.ctc.edu. Archived from the original on 2009-09-25. Retrieved 2009-10-16.

[4] "What Are Ligaments?". WebMD. Retrieved 2020-09-30.

[5] "Aponeurosis". IMAIOS. Retrieved 2020-09-30.

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