Eye - Structure

Question 1

Cornea

Answer 1

The transparent front part of the eye that covers the iris and pupil. It helps to focus incoming light onto the retina.

Question 2

Pupil

Answer 2

The black circular opening in the center of the iris that regulates the amount of light entering the eye.

Question 3

Iris

Answer 3

The colored part of the eye that controls the size of the pupil and, consequently, the amount of light that reaches the retina.

Question 4

Ciliary Body

Answer 4

Contains the ciliary muscle, which changes the shape of the lens to focus on near or distant objects.

Question 5

Lens

Answer 5

A transparent structure behind the iris that focuses light onto the retina.

Question 6

Sclera

Answer 6

The white, outer layer of the eyeball that provides protection and structure.

Question 7

Retina

Answer 7

The light-sensitive layer at the back of the eye that contains rod and cone cells. Rods detect light and dark, while cones detect color.

Question 8

Choroid

Answer 8

The vascular layer between the retina and the sclera that provides oxygen and nutrients to the eye.

Question 9

Fovea

Answer 9

A small pit in the retina that contains a high concentration of cone cells and is responsible for sharp central vision.

Question 10

Optic Disc

Answer 10

The point where the optic nerve exits the eye; it is also known as the blind spot because it lacks photoreceptors.

Question 11

Optic Nerve

Answer 11

Transmits visual information from the retina to the brain.

Question 12

Medial and Lateral Rectus Muscles

Answer 12

These muscles control the horizontal movement of the eye. The medial rectus moves the eye inward, while the lateral rectus moves it outward