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Inferior epigastric artery

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Title: Inferior epigastric artery  
Author: World Heritage Encyclopedia
Language: English
Subject: Cremasteric artery, Superior epigastric artery, Deep circumflex iliac artery, Arterial tree, Inferior epigastric vein
Publisher: World Heritage Encyclopedia

Inferior epigastric artery

Inferior epigastric artery
Right inferior epigastric artery - view from inside of abdomen. (Inferior epigastric vessels labeled at upper left.)
The abdominal inguinal ring. (Inf. epigastric artery labeled at center left.)
Latin arteria epigastrica inferior
Source external iliac artery
Branches superior epigastric artery, cremasteric branch of inferior epigastric artery, pubic branch of inferior epigastric artery
inferior epigastric vein
Anatomical terminology

In human anatomy, inferior epigastric artery refers to the artery that arises from the external iliac artery and anastomoses with the superior epigastric artery. Along its course, it is accompanied by a similarly named vein, the inferior epigastric vein.


  • Course 1
  • Additional images 2
  • See also 3
  • References 4
  • External links 5


It arises from the external iliac artery, immediately above the inguinal ligament.

It curves forward in the subperitoneal tissue, and then ascends obliquely along the medial margin of the abdominal inguinal ring; continuing its course upward, it pierces the transversalis fascia, and, passing in front of the linea semicircularis, ascends between the Rectus abdominis and the posterior lamella of its sheath.

It finally divides into numerous branches, which anastomose, above the umbilicus, with the superior epigastric branch of the internal thoracic artery and with the lower intercostal arteries.

As the inferior epigastric artery passes obliquely upward from its origin it lies along the lower and medial margins of the abdominal inguinal ring, and behind the commencement of the spermatic cord.

The vas deferens, as it leaves the spermatic cord in the male, and the round ligament of the uterus in the female, winds around the lateral and posterior aspects of the artery.

Additional images

See also


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

External links

  • -1033174982 at GPnotebook
  • Anatomy figure: 35:04-07 at Human Anatomy Online, SUNY Downstate Medical Center - "Incisions and the contents of the rectus sheath."
  • Anatomy photo:35:12-0104 at the SUNY Downstate Medical Center - "Anterior Abdominal Wall: Blood Vessels in the Rectus sheath"
  • Anatomy image:7282 at the SUNY Downstate Medical Center
  • Anatomy image:7326 at the SUNY Downstate Medical Center
  • Anatomy image:7542 at the SUNY Downstate Medical Center
  • Anatomy image:7578 at the SUNY Downstate Medical Center
  • figures/chapter_25/25-9.HTM — Basic Human Anatomy at Dartmouth Medical School
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