Corpus Callosum

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  • The corpus callostun is the largest commissure of the brain. It connects the two cerebral hemispheres.

 • The corpus callosum connects all parts of the cerebral cortex of the two sides, except the lower and anterior parts of the temporal lobes which are connected by the anterior comrnissure.

Parts of Corpus Callosum :-



















 1. Genu:- It is the anterior end . It lies 4cm behind the frontal pole.

 2. Rostrum:- It is directed downwards and backwards from genu, ends by joining lamina terminalis, infront of the anterior commissure.

 3. trunk :- It is the middle part, between the genu and the splenium.

 • Its superior surface is convex and inferior surface is concave.

 • It provides attachment to the septum pellucidum and the fornix.

 4. Splenium: - It is the posterior end forming the thickest part of the corpus callosum . It lies 6 cm in front of the occipital pole.

Functional Significance:-

The corpus callosum helps in coordinating activities of two hemispheres.



Written by: RB Sah, MBBS 

Reference: ANATOMY book BD Chaurasiya and other books 

Location: Kathmandu 44600, Nepal

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