Ch 8 - The Eye and Vision

Front

What is the function of the optic nerve?

Back

The optic nerve transmits visual information from the retina to the thalamus and then to the occipital lobe of the brain.

Front

What are the three primary colors of light detected by cones?

Back

Green, red, and blue.

Front

What is the correct order of structures through which light passes after entering the eye?

Back

Cornea, pupil, lens, retina.

Front

What is the retina?

Back

The back part of the eye where the image is formed.

Front

Which part of the eye controls the shape of the lens?

Back

Ciliary muscles.

Front

What is the role of the cornea in vision?

Back

The cornea is the clear front part of the eye that helps to focus light.

Front

What is the function of the iris?

Back

The iris controls the size of the pupil and thus the amount of light that enters the eye.

Front

What is the purpose of the lens in the eye?

Back

The lens focuses light onto the retina.

Front

What is the blind spot in the eye?

Back

The blind spot is the area on the retina where the optic nerve exits the eye, and there are no photoreceptors.

Front

What are rods and cones?

Back

Rods are photoreceptors that detect light intensity, while cones detect color.