Superficial inguinal ring
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| Superficial inguinal ring | |
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| Front of abdomen, showing surface markings for arteries and inguinal canal (superficial inguinal ring labeled as subcutaneous inguinal ring at lower left) | |
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| The superficial inguinal ring. | |
| Latin | Anulus inguinalis superficialis |
| Gray's | subject #286 1315 |
The superficial inguinal ring (subcutaneous inguinal ring or external inguinal ring) is an anatomical structure in the anterior wall of the human abdomen. It is a triangular opening that forms the exit of the inguinal canal, which houses the ilioinguinal nerve, the genital branch of the genitofemoral nerve, and the spermatic cord (in men) or the round ligament (in women). At the other end of the canal, the deep inguinal ring forms the entrance.[1]
It is found within the aponeurosis of the external oblique, immediately above the crest of the pubis, 1 centimeter above and medial to the pubic tubercle. It has medial and lateral crura. It is at the layer of the aponeurosis of the obliquus externus abdominis.[2]
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Clinical significance
The superficial ring is palpable[3] under normal conditions. It becomes dilated in a condition called athletic pubalgia. Abdominal contents may protrude through the ring in inguinal hernia.
Gallery
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Diagram of an indirect, scrotal inguinal hernia (median view from the left)
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Superficial inguinal ring
See also
References
- ^ James Harmon M.D. Lecture 13. Human Gross Anatomy. University of Minnesota. September 4, 2008.
- ^ Kyung Won, PhD. Chung (2005). Gross Anatomy (Board Review). Hagerstown, MD: Lippincott Williams & Wilkins. p. 198. ISBN 0-7817-5309-0 [Amazon-US | Amazon-UK].
- ^ Moore & Agur, Essential Clinical Anatomy (2007)
This article incorporates text from a public domain edition of Gray's Anatomy.
External links
- SUNY Labs 35:09-0101 - "Anterior Abdominal Wall: Borders of the Superficial Inguinal Ring"
- SUNY Figs 36:01-13 - "The inguinal canal and derivation of the layers of the spermatic cord."
- 543883342 at GPnotebook
