Median sacral artery

Definition

The median sacral artery is a small, unpaired artery that arises from the posterior aspect of the abdominal aorta, just above its bifurcation into the common iliac arteries. It supplies blood to the sacrum and coccyx.

Related terms

Abdominal Aorta:

The largest artery in the abdominal cavity that supplies blood to many of the abdominal organs, pelvis, and legs.

Sacrum:

A large, triangular bone at the base of the spine and at the upper and back part of the pelvic cavity, where it is inserted like a wedge between two hip bones.

Coccyx:

The small bone at the base of your spinal column that is made up of 3-5 vertebrae fused together; also known as the tailbone.