Which of the following is not found in mammalian brain

Subdural space

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Sub-arachnoid space

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Optocoel

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Durameter

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Solution

The correct option is A Optocoel
The optic lobes are the center for impulses coming to the eyes. They are hollow having cavities known as optocoel which communicates with the fourth ventricle behind a narrow cavity, The optocoel not found in the mammalian brain.
So, option C is the correct option.

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