Connection lost. Please refresh the page.
Get help How to study Login Register
Ready to learn?
Pick your favorite study tool

Posterior median sulcus

Recommended video: White matter [33:05]
Structure of the white matter of the spinal cord in cross section.

The posterior median sulcus, also known as the dorsal median sulcus, is a shallow groove found in the midline of the posterior aspect of the spinal cord, medulla oblongata and pons. In the spinal cord, it is the external boundary of the posterior median septum and separates the two posterior funiculi. 

The posterior median sulcus of the spinal cord is continuous superiorly in the closed part of the medulla oblongata, being gradually shallower proximally. Here, it separates the two gracile fasciculi which ascend from the spinal cord. The pons also bears a median sulcus in the midline of it's posterior surface, which is continuous with that of the medulla oblongata and the spinal cord. 

The posterior (median) medullary vein may run along the posterior median sulcus of the medulla oblongata, which then becomes continuous with the posterior (median) spinal vein in the posterior median sulcus in the spinal cord.

Terminology English: Posterior median sulcus
Latin: Sulcus medianus posterior
Definition Shallow midline groove on the posterior aspect of the spinal cord, medulla oblongata and pons

Posterior median sulcus: want to learn more about it?

Our engaging videos, interactive quizzes, in-depth articles and HD atlas are here to get you top results faster.

What do you prefer to learn with?

“I would honestly say that Kenhub cut my study time in half.” – Read more.

Kim Bengochea Kim Bengochea, Regis University, Denver
© Unless stated otherwise, all content, including illustrations are exclusive property of Kenhub GmbH, and are protected by German and international copyright laws. All rights reserved.

Register now and grab your free ultimate anatomy study guide!