- Corrugator cutis ani muscle
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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.
External links
- hemorrhoid.net
- 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.
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.
List of muscles of abdominopelvic cavity (TA A04.5, GA 4.408) Abdomen/
wallAnterior/
lateralMuscleFasciaFascia/abdominal fascia: panniculus adiposus (Fascia of Camper) · stratum membranosum (Fascia of Scarpa) · Transversalis fascia (Interfoveolar ligament)
Linea alba · Linea semilunaris · Inguinal triangle
Inguinal canal (Deep inguinal ring, Superficial inguinal ring, Intercrural fibers, Crura of superficial inguinal ring)
Inguinal ligament (Pectineal ligament, Lacunar ligament, Reflected ligament)PosteriorMuscleFasciaPelvis MuscleFasciafascia/pelvic fascia visceral (Rectovaginal fascia, Rectoprostatic fascia) · parietal (Obturator fascia/Tendinous arch, Piriformis fascia)
floor/diaphragm: Superior fascia of pelvic diaphragm (Pubovesical ligament, Puboprostatic ligament) · Inferior fascia of pelvic diaphragm
Anococcygeal bodyCategories:- Muscles of the torso
- Muscle stubs
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