Sacral foramina

Definition

Sacral foramina are a series of holes located in the sacrum, a triangular bone at the base of the spine that is formed by the fusion of five vertebrae. They allow for the passage of nerves and blood vessels to and from the pelvic region.

Related terms

Sacrum:

The triangular bone at the base of the spine, consisting of five fused vertebrae, which connects the spine to the pelvic girdle.

Vertebral Column:

The part of the axial skeleton that runs down the middle of the back, providing support and forming a central conduit for nerve tracts.

Spinal Nerves:

Nerves that emerge from the spinal cord through spaces between vertebrae, including those passing through sacral foramina, to innervate various parts of the body.