Skip to main content

Unfortunately we don't fully support your browser. If you have the option to, please upgrade to a newer version or use Mozilla Firefox, Microsoft Edge, Google Chrome, or Safari 14 or newer. If you are unable to, and need support, please send us your feedback.

Publish with us
Inferior Phrenic Artery
Cardiovascular System

Inferior Phrenic Artery

Arteria phrenica inferior

Read more

Quick Facts

Origin: Abdominal aorta.

Course: Superiorly along the inferior diaphragm.

Branches: Superior suprarenal arteries and esophageal branches.

Supplied Structures: Diaphragm and abdominal esophagus (left only).

Complete Anatomy
The world's most advanced 3D anatomy platform
Try it for Free


The inferior phrenic arteries are the first paired branches of the abdominal aorta at the level of the twelfth thoracic vertebrae (T12). Their origin is variable, and they may arise via a common origin on the aorta or from surrounding vessels such as the celiac trunk.


The inferior phrenic arteries cross anterior to the crura of the diaphragm and course in a superolateral direction. These arteries branch extensively along the inferior surface of the diaphragm.

During its course, the left inferior phrenic artery travels posterior to the esophagus and gives off branches to the abdominal esophagus. The right inferior phrenic artery passes posterior to the inferior vena cava. Branches of the left and the right inferior phrenic arteries travel towards the central tendon and anastomose with each other. Additional branches supply the muscular portion of the diaphragm and anastomose with the lower intercostal, musculophrenic, and pericardiacophrenic arteries to ensure continuous supply.


The left inferior phrenic artery often gives esophageal branches while the right inferior phrenic may supply the caval opening of the diaphragm. Several small vessels descend from the inferior phrenic arteries and travel towards the suprarenal glands. These are the superior suprarenal arteries.

Supplied Structures

The inferior phrenic artery supplies the inferior aspect of the diaphragm, contributes to suprarenal gland vasculature, and may also supply the abdominal esophagus.

Learn more about this topic from other Elsevier products


ScienceDirect image

When the artery is occluded blood is forced through the collateral vessels, drastically increasing fluid shear stress and triggering an inflammatory response which drives vessel remodeling.

Explore on ScienceDirect(opens in new tab/window)

Complete Anatomy

The world's most advanced 3D anatomy platform

Complete Anatomy