Corrugator cutis ani muscle

Corrugator cutis ani muscle
*Anatomical terms of muscle* [edit on Wikidata]

The Corrugator Cutis Ani aka Ellis' muscle, after the anatomist George Viner Ellis.^[1]

Around the anus is a thin stratum of involuntary muscle 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.

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

↑ http://www.dartmouth.edu/~humananatomy/resources/glossary.html

Muscles and ligaments of abdomen and pelvis

Abdominal wall

Anterior/
lateral

Muscle

Fascia

Abdominal fascia panniculus adiposus Fascia of Camper Membranous layer Fascia of Scarpa Transverse fascia Interfoveolar ligament Linea alba Linea semilunaris

Inguinal	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

Posterior

Muscle	quadratus lumborum Iliopsoas psoas major psoas minor iliacus

Fascia	Iliac fascia Iliopectineal arch

Pelvis

Muscle	levator ani iliococcygeus pubococcygeus puborectalis coccygeus rectococcygeus

Fascia	pelvic fascia Visceral Rectovaginal fascia Rectoprostatic fascia Parietal Obturator fascia Tendinous arch Piriformis fascia floor superior fascia Pubovesical ligament Puboprostatic ligament inferior fascia Anococcygeal body

This article is issued from Wikipedia - version of the 4/18/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.