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Question

The retinal blood vessels enter the eye at :

A
Fovea
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B
Macula lutea
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C
Blind spot
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D
Crista
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Solution

The correct option is C Blind spot
The optic nerves leave the eye and the retinal blood vessels enter it at a point medial to and slightly above the posterior pole of the eyeball. Photoreceptor cells are not present in that region and hence it is called the blind spot.

The fovea is responsible for sharp central vision.
The macula lutea is an oval-shaped pigmented area near the center of the retina of the human eye and some other animalian eyes.
The crista is a specific receptors of the vestibular apparatus responsible for maintenance of balance of the body and posture.

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