MCQ H.3.3.1.b. – BasicPhysiology.org

MCQ

Vision H.3.3.1.b. The Retina

MCQ H.3.3.1.b.

The Retina

1 / 5

What is so special about the fovea located in the retina of the eye?

It is the only area where the photoreceptors detect colors

It is the area when the optical nerves exit the eye

It is the only area where the photoreceptors detect black and white

It is the only area where the photoreceptors are more sensitive

2 / 5

Which vitamin is essential for the production of rhodopsin located in the photoreceptors in the retina of the eye?

Vitamin A

Vitamin B

Vitamin C

Vitamin D

3 / 5

In the retina of the eye, the photoreceptors are located:

In front of the retinal layer

In front of the nervous layers

At the back of the photoreceptor layer

At the back of the nervous layer

4 / 5

When miosis occurs in the eye, this is due to the following event:

Contraction of the ocular radial muscle

Contraction of the ocular circular muscle

Dilatation of the ocular radial muscle

Dilatation of the ocular circular muscle

5 / 5

When mydriasis occurs in the eye, this is due to the following event:

Contraction of the ocular radial muscle

Contraction of the ocular circular muscle

Dilatation of the ocular radial muscle

Dilatation of the ocular circular muscle

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