Answer :
The third ventricle is the ventricle located between the right and left halves of the diencephalon.
The brain consists of interconnected fluid-filled cavities called ventricles. The ventricular system is composed of two lateral ventricles, the third ventricle, the cerebral aqueduct, and the fourth ventricle.
The third ventricle is a narrow funnel-shaped cavity of the brain that is located in the midline between the two hemispheres of the diencephalon of the forebrain. The third ventricle makes up the central part of the brain and facilitates communication between other ventricles.
The main function of the third ventricle is to produce, secrete, and convey CSF in the brain.
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