Looking to lead a stronger, healthier life?
Sign up for our Wellness Wire newsletter for all sorts of nutrition, fitness, and wellness wisdom.

Now we’re in this together.
Thanks for subscribing and having us along on your health and wellness journey.

See all Healthline's newsletters »

Fornix body

The body of fornix joins the hippocampus and mammillary bodies, structures in the base of the brain that are involved in memory formation and recall. It is part of the limbic system.

The body of fornix is just one segment of four components that comprise the fornix of the brain. The other elements are the fimbria, crus, and column.

The fornix is C-shaped and is the main structure of the hippocampal formation. It is a bunch of nerve cell fibers protruding from the under surface of the corpus callosum, the nerve fibers that join the two halves of the brain. From there, the body of fornix extends to the interventricular foramen, an opening at the center of the brain. Next to the foramen, the body of fornix forms the anterior (front) columns of the fornix in the lower borders of the septum pellucidum, which is a membrane located at the midline of the brain.

In CT imaging studies, the body of fornix is seen hanging from the slender, superior (upper) part of the septum pellucidum. It is situated above the tela choroidea (connective tissue) and ependymal roof (membrane lining) of the third ventricle, a fluid-filled cavity in the brain.

Written and medically reviewed by the Healthline Editorial Team
Co-developed by:

In Depth: Fornix body

Debugging Tools

Level: 5
Frame: 15
Toggle Hotspot
VP Data Tool
HexTable json from Steve
Steve's ajax layer update call:
[still on original layer]

Ad values:

adModel.dfpAdSite: hn.us.hl.bm.x.x.x
adParams['k1']: otherbraindisorders,body_of_fornix,9104265

More on BodyMaps

Take a Video Tour

Learn how to rotate, look inside and explore the human body. Take the tour

BodyMaps Feedback

How do you like BodyMaps? How can we improve it? Tell us what you think