Deep inguinal ring
4764748
216229269
2008-05-31T18:20:28Z
92.10.4.254
/* Location */
{{Infobox Anatomy |
Name = {{PAGENAME}} |
Latin = annulus inguinalis profundus |
GraySubject = 286 |
GrayPage = 1315 |
Image = Gray1227.png |
Caption = Front of [[abdomen]], showing surface markings for [[arteries]] and [[inguinal canal]]. (Abdominal inguinal ring labeled at lower left.) |
Image2 = Inguinalhernia.gif |
Caption2 = Diagram of an [[indirect inguinal hernia|indirect]], [[scrotum|scrotal]] [[inguinal hernia]] ( [[Anatomical position|median]] view from the left).|
System = |
MeshName = |
MeshNumber = |
DorlandsPre = a_50 |
DorlandsSuf = 12143730 |
}}
The '''deep inguinal ring''' ('''internal or deep abdominal ring''', '''abdominal inguinal ring''', '''internal inguinal ring''') is the entrance to the [[inguinal canal]].
==Location==
The surface anatomy of the point is disputed, but in a recent study<ref>{{cite journal |author=Koliyadan S, Narayan G, Balasekran P |title=Surface marking of the deep inguinal ring |journal=Clin Anat |volume=17 |issue=7 |pages=554–7 |year=2004 |pmid=15376291 |doi=10.1002/ca.10257}}</ref> 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]] (ie. midway between the [[anterior superior iliac spine]] and the [[pubic tubercle]]. Traditionally either one of these 2 sites was claimed as its location.
Some sources state that it is at the layer of the [[transversalis fascia]].<ref name="isbn0-7817-5309-0">{{cite book |author=Kyung Won, PhD. Chung |title=Gross Anatomy (Board Review) |publisher=Lippincott Williams & Wilkins |location=Hagerstwon, MD |year=2005 |pages=198 |isbn=0-7817-5309-0 |oclc= |doi=}}</ref>
==Shape==
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.
==Boundaries==
It is bounded, above and laterally, by the arched lower margin of the transversalis fascia; below and medially, by the [[inferior epigastric vessels]].
==Transmission==
It transmits the [[spermatic cord]] in the male and the [[round ligament of the uterus]] in the female.
==Extensions==
From its circumference a thin funnel-shaped membrane, the [[infundibuliform fascia]], is continued around the cord and testis, enclosing them in a distinct covering.
==Additional images==
<gallery>
Image:Gray401.png|The abdominal inguinal ring.
Image:Gray547.png|The relations of the femoral and abdominal inguinal rings, seen from within the abdomen. Right side.
</gallery>
== References ==
{{reflist}}
==See also==
* [[Inguinal canal]]
* [[Inguinal hernia]]
* [[Superficial inguinal ring]]
==External links==
* {{SUNYAnatomyFigs|36|01|03}} - "The inguinal canal and derivation of the layers of the spermatic cord."
* {{SUNYAnatomyImage|7|3|62}}
* {{GPnotebook|-261423027}}
* {{NormanAnatomy|inguinalregion}}
* {{UMichAtlas|abdo_wall65}} - "The Coverings of the Inguinal Canal, External & Internal Oblique & Transversus Abdominis Removed"
* [http://www.burrill.demon.co.uk/meddoc/hernia.html The Inguinal Canal and Hernias (includes diagram] at burrill.demon.co.uk)
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