which of the following ventricles is found under the corpus callosum?

The ventricle located directly under the corpus callosum is the body of the lateral ventricle (part of the paired lateral ventricles).

Key anatomy

• The lateral ventricles are paired cavities within each cerebral hemisphere.

• Their body (central part) runs posteriorly beneath the corpus callosum between the frontal horn and the atrium.

• Superiorly, this body is bordered by the body of the corpus callosum , meaning it lies directly under it.

Why this is the correct option

• Descriptions of the ventricular system state that “the body of the lateral ventricle passes posteriorly under the corpus callosum” , confirming the relationship.

• The third ventricle lies lower, between the thalami, and the so‑called “fifth ventricle” (cavum septi pellucidi) is not a true ventricle.

Extra exam tip

• If you see a question asking “which ventricle lies beneath the corpus callosum,” choose lateral ventricle (body) , not third or fourth ventricle.

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