Medial longitudinal fissure

Longitudinal fissure
The human brain as viewed from above. Medial longitudinal fissure visible in red, running top to bottom.
longitudinal fissure shown in red (animation)
Details
Identifiers
Latin	fissura longitudinalis cerebri, fissura cerebri longitudinalis
NeuroNames	hier-16
NeuroLex ID	Longitudinal fissure
TA	A14.1.09.007
FMA	83727
Anatomical terms of neuroanatomy []

The longitudinal fissure (or cerebral fissure, medial longitudinal fissure, or interhemispheric fissure) is the deep groove that separates the two hemispheres of the vertebrate brain.

The medial surfaces of the two hemispheres are as similarly convoluted by gyri and sulci as is the outer surface of the brain.

The falx cerebri, a dural brain covering, lies within the longitudinal fissure.

The corpus callosum crosses between the two hemispheres at the bottom of the longitudinal fissure.

facies dorsalis cerebri gyri

Cerebrum. Medial face. Dissection of corpus callosum etc.

Human brain - left and right hemispheres - superior-lateral view

Basal view of a human brain

Cerebrum. Optic and olfactory nerves. Inferior view. Deep dissection.

Cerebrum. Inferior view. Deep dissection.

Meninges and superficial cerebral veins. Deep dissection. Superior view.