Inguinal canal

Inguinal canal: Anatomy & ContentsAnatomy and contents of the inguinal canal
~ 4 min

The inguinal canal (canalis inguinalis) is an important topographic structure located in the inferior part of the inguinal region. It is a gap 4-6 cm long, which connects the superficial and deep inguinal rings.

The deep inguinal ring (anulus inguinalis profundus) is located above the middle of the inguinal ligament and corresponds to the location of the lateral inguinal fossa on the internal surface of the anterior abdominal wall. It is the site of the formation of oblique inguinal hernias

Deep inguinal ring (anulus inguinalis profundus)
Deep inguinal ring (anulus inguinalis profundus)
Deep inguinal ring (anulus inguinalis profundus)
Deep inguinal ring (anulus inguinalis profundus)
Deep inguinal ring (anulus inguinalis profundus)
Deep inguinal ring (anulus inguinalis profundus)

The superficial inguinal ring (anulus inguinalis supeficialis) is located between the lateral and the medial cruses of the aponeurosis of the external oblique muscle. It corresponds to the location of the medial inguinal fossa on the internal surface of the anterior abdominal wall. It is the site of the formation of direct inguinal hernias.

Superficial inguinal ring (anulus inguinalis supeficialis)
Superficial inguinal ring (anulus inguinalis supeficialis)
Superficial inguinal ring (anulus inguinalis supeficialis)
Superficial inguinal ring (anulus inguinalis supeficialis)
Superficial inguinal ring (anulus inguinalis supeficialis)
Superficial inguinal ring (anulus inguinalis supeficialis)

The spermatic cord (in men) and the round ligament of the uterus pass through the inguinal canal. It also contains the ilio-inguinal nerve and the genital branch of the genitofemoral nerve.

Spermatic cord (funiculus spermaticus)
Spermatic cord (funiculus spermaticus)
Round ligament of uterus (lig. teres uteri)
Round ligament of uterus (lig. teres uteri)

The inguinal canal has 4 walls:

  • The anterior wall is the aponeurosis of the external oblique muscle

  • The posterior wall consists of the transversalis fascia and the parietal peritoneum

  • The superior wall consists of the inferior fibres of the internal oblique and transverse abdominal muscles

  • The inferior wall is the inguinal ligament

Inguinal ligament (lig. inguinale)
Inguinal ligament (lig. inguinale)
Dictionary

Inguinal canal

Inguinal canal
canalis inguinalis
Deep inguinal ring
anulus inguinalis profundus
Superficial inguinal ring
anulus inguinalis supeficialis
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