Crura of superficial inguinal ring

Crura of superficial inguinal ring
The subcutaneous inguinal ring. (Superior crus labeled at bottom right.)
Details
Latin	crus mediale anuli inguinalis superficialis, crus laterale anuli inguinalis superficialis
*Anatomical terminology* [edit on Wikidata]

The superficial inguinal ring is bounded below by the crest of the pubis; on either side by the margins of the opening in the aponeurosis, which are called the crura of the ring; and above, by a series of curved intercrural fibers.

The inferior crus (or lateral, or external pillar) is the stronger and is formed by that portion of the inguinal ligament which is inserted into the pubic tubercle; it is curved so as to form a kind of groove, upon which, in the male, the spermatic cord rests.
The superior crus (or medial, or internal pillar) is a broad, thin, flat band, attached to the front of the pubic symphysis and interlacing with its fellow of the opposite side.

References

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

inguinalregion at The Anatomy Lesson by Wesley Norman (Georgetown University)
medial
- Anatomy photo:35:09-0102 at the SUNY Downstate Medical Center - "Anterior Abdominal Wall: Borders of the Superficial Inguinal Ring"
- Anatomy image:7049 at the SUNY Downstate Medical Center
- Anatomy image:7670 at the SUNY Downstate Medical Center
lateral
- Anatomy photo:35:09-0103 at the SUNY Downstate Medical Center - "Anterior Abdominal Wall: Borders of the Superficial Inguinal Ring"

Muscles and ligaments of abdomen and pelvis

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

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

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