Question

Describe the various parts of a brain and the roles

Answer 1

Hey mate here is the answer,

The brain has three main parts visible externally, (1) cerebrum, (2) cerebellum and (3)medulla oblongata.

Cerebrum:-
The cerebrum is the largest portion of the brain. It is divided into two cerebral hemispheres which are highly convoluted with ridges and grooves.
The highly developed cortex region of cerebral hemisphere enables us to think, reason out, invent, plan and memorize.
Overall cerebrum is the seat of intelligence, consciousness and willpower. It controls all voluntary actions.

Cerebellum:-
The cerebellum is a much smaller area of the brain located just at the base and under the large cerebrum. It has no convolutions, but has numerous furrows.
The main function of the cerebellum is to maintain 'balance' of the body and coordinate muscular activity. Proper coordination and timing of their contraction and relaxation is the responsibility of the cerebellum.

Medulla oblongata:-
The medulla oblongata is the lowest portion of the brain located at the base of the skull. It is roughly triangular and is continued behind as the spinal cord.
Its function is to control the activities of the internal organs, for example, peristaltic movement of the alimentary canal, movement of breathing, beating of the heart and many other involuntary actions.
Injury to the medulla generally results in death.


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