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Question

The collection of cell bodies is known as .The pairs of superior colliculi and inferior colliculi are collectively known as .

A
colliculi
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B
corpora quadrigemina
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C
cerebral peduncles
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D
thalamus
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Solution

The correct option is B corpora quadrigemina
Mid brain has bundles of axons and nuclei. Nuclei are collection of cell bodies and are also known as colliculi.

Colliculi exist in pairs are are in two regions- superior and inferior. Pair of superior colliculi are responsible for visual reflexes and pair of inferior colliculi are responsible for auditory reflexes.
All these four colliculi together are known as corpora quadrigemina and is responsible for hand-eye coordination. Also, cerebral peduncles are present at the foot of the mid-brain and is responsible for smooth voluntary movements.

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