Cerebrum

The cerebrum or telencephalon, together with the diencephalon, constitutes the forebrain. In humans, the cerebrum is the most superior region of the vertebrate central nervous system. However, in the majority of animals, the cerebrum is the most anterior region of the CNS as most animals rarely assume an upright anatomical position. Telencephalon refers to the embryonic structure from which the mature cerebrum develops. In mammals, the dorsal telencephalon, or pallium, develops into the cerebral cortex, and the ventral telencephalon, or subpallium, becomes the basal ganglia. The cerebrum is also divided into approximately symmetric left and right cerebral hemispheres.