Posterior median sulcus

Definition

The posterior median sulcus is a narrow groove that runs along the dorsal surface of the spinal cord. It helps to divide the spinal cord symmetrically on its dorsal side.

Related terms

Spinal Cord:

The main pathway for information connecting the brain and peripheral nervous system.

Anterior Median Fissure: A wide, deep groove on the front (anterior) of the spinal cord, complementing the posterior median sulcus by dividing it on its ventral side.

Dorsal Root:

Contains sensory nerve fibers that enter the dorsal aspect of the spinal cord, carrying information from the body to the brain