Corrugator cutis ani muscle
Corrugator cutis ani muscle Gray's subject #120 425 Origin Insertion Artery Nerve Actions
The Corrugator Cutis Ani.—Around the anus is a thin stratum of involuntary muscular fiber, which radiates from the orifice.
Medially the fibers fade off into the submucous tissue, while laterally they blend with the true skin.
By its contraction it raises the skin into ridges around the margin of the anus.
The name of this muscle is primarily limited to older texts.
- Shafik A (1976). "A new concept of the anatomy of the anal sphincter mechanism and the physiology of defecation. III. The longitudinal anal muscle: anatomy and role in anal sphincter mechanism.". Invest Urol 13 (4): 271–7. PMID 1245390.
List of muscles of abdominopelvic cavity (TA A04.5, GA 4.408) Abdomen/
lateralMuscleFasciaInguinal ligament (Pectineal ligament, Lacunar ligament, Reflected ligament)PosteriorMuscleFascia
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