Biology, asked by monukumar8846, 1 year ago

What is brain describe its functions 7

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Answered by Anonymous
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Brain:-

The brain is an organ that coordinates nervous system function in vertebrate and most invertebrate animals. ... In order to produce action potentials quickly, allowing for thought, movement, and other survival functions, neurons create an ion gradient that must be actively maintained at all times.

Functions of brain:-

1] Frontal Lobe: Most anterior, right under the forehead; the frontal lobe controls intellectual activities, such as the ability to organize, as well as personality, behavior, and emotional control.

2]  Parietal Lobe: Near the back and top of the head above the ears; the parietal lobe controls the ability to read, write, and understand spatial relationships.

3]  Occipital Lobe: most posterior, at the back of the head; the occipital lobe controls sight.

4] Temporal Lobe: Side of head above ears situated immediately behind and below the frontal lobes; the temporal lobe controls memory, speech and comprehension.

5] Brain Stem: Lower part of brain, leads to spinal cord; the brain stem contains nerve fibers that carry signals to and from all parts of the body. The brain stem also regulates body functions such as consciousness, fatigue, heart rate, and blood pressure. Damage to the brain stem can cause loss of consciousness.

6]  Cerebellum: Located at the base of the skull; it is a curved mass of nerve tissues that regulates balance and coordinates fine motor skills; it enables us to move quickly and smoothly.

7]  Grey and White Matter: The brain is made up of two types of tissue, grey matter and white matter. Grey matter is involved in analyzing information. White matter conducts information between grey matter areas. The ratio of grey to white matter changes over the lifespan.

                 Hope it will help you .

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