The brain is divided into 3 keys regions name them

Forebrain, Midbrain, and Hindbrain.

Explanation:

Brain is complex structure which is work as control center of the whole body. Brain is helping in receive, send, processes and direct the sensory information. Brain is divided into three key regions with each having different functions.

Forebrain: It is known as the largest part of the brain. Optic cranial nerve and the olfactory are present on the forebrain part. Cerebrum is also the part of the forebrain which cover the 2-3rd part of the brain structure.

Midbrain: It connects the forebrain to the hindbrain. Brainstem which is formed by the composition of Midbrain and Hindbrain, helping to connect the cerebrum with spinal cord. Midbrain helping in to regulate movements and visual signals.

Hindbrain: It is composed of two subregions metencephalon and myelencephalon. It is helping in mentioning of equilibrium and balance, regulation of autonomic functions and coordination in movements.

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i don't understand. explain it clearly