The brain is a spongy organ made up of nerve and supportive tissues. It is protected by the skull. The base, or lower part of the

brain is connected to the spinal cord at the brain stem. Together, the brain and spinal cord are known as the central nervous

system (CNS). The spinal cord contains nerves that send information to and from the brain. The cerebrum is the largest part of

the brain and is divided into two parts called the left and right cerebral hemispheres. The two hemispheres are connected by the

corpus callosum. The outer surface of the cerebrum is called the cerebral cortex or grey matter, and he inner area of the

cerebrum is referred to as the white matter.

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22 October, 02:20

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Silas · Answer 1

The brain and is divided into two parts called the left and right cerebral hemispheres. The two hemispheres are connected by the corpus callosum.