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Neural Control and Coordination

Short Answer Type

131. Answer Briefly
(c) How does the eye regulate the amount of light that falls on the retina ?

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Multiple Choice Questions

132. The region of the vertebrate eye, where the optic nerve passes out of the retina is called the

Fovea
Iris
Blind spot
Optic chaisma

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Short Answer Type

133. Write short notes on the following
(b) Fore brain.

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134. Write short notes on the following
(c) mid brain.

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135. Write short notes on hind brain.

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136. Write short notes on organ of corti .

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Long Answer Type

137. Explain the following processes:
Tranmission of a nerve impulse across a chemical synapse.

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Short Answer Type

138.
Compare the following

Central neural system(CNS) and peripheral neural system(PNS).

CNS - Central Neural System :
1.It lies on median longitudinal axis of body.
2. It includes brain and spinal cord.
3. The brain is protected by cranium and spinal cord by vertebral column.

PNS : Peripheral Neural System
1. It includes nerves which arise from central nervous system.
2. It includes cranial nerves and spinal nerves.
3. It is not protected by bones.

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