Inferior epigastric artery
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. These epigastric vessels form the lateral border of Hesselbach's triangle, which outlines the area through which direct inguinal hernias protrude.
|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.)
|Source||external iliac artery|
|Branches||Cremasteric branch of inferior epigastric artery, pubic branch of inferior epigastric artery|
|Vein||inferior epigastric vein|
|Latin||arteria epigastrica inferior|
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.
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.
- 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