Deep inguinal ring
|Deep inguinal ring|
|Front of abdomen, showing surface markings for arteries and inguinal canal. (Abdominal inguinal ring labeled at lower left.)|
|Diagram of an indirect, scrotal inguinal hernia ( median view from the left).|
|Latin||annulus inguinalis profundus|
|Gray's||subject #286 1315|
The deep inguinal ring (internal or deep abdominal ring, abdominal inguinal ring, internal inguinal ring) is the entrance to the inguinal canal.
The surface anatomy of the point is disputed, but in a recent study it was found to be at a point between the mid-inguinal point (situated midway between the anterior superior iliac spine and the pubic symphysis) and the midpoint of the inguinal ligament. Traditionally either one of these 2 sites was claimed as its location.
It is of an oval form, the long axis of the oval being vertical; it varies in size in different subjects, and is much larger in the male than in the female.
It is bounded, above and laterally, by the arched lower margin of the transversalis fascia; below and medially, by the inferior epigastric vessels.
From its circumference a thin funnel-shaped membrane, the infundibuliform fascia, is continued around the cord and testis, enclosing them in a distinct covering.
- SUNY Figs 36:01-03 - "The inguinal canal and derivation of the layers of the spermatic cord."
- SUNY Anatomy Image 7362
- -261423027 at GPnotebook
- Norman/Georgetown inguinalregion
- Atlas of anatomy at UMich abdo_wall65 - "The Coverings of the Inguinal Canal, External & Internal Oblique & Transversus Abdominis Removed"
- The Inguinal Canal and Hernias (includes diagram at burrill.demon.co.uk)
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.