Lesson 6 (Parts of the Eye)

Question 1

This protects the inside of your eye like a windshield.

Answer 1

Cornea

Question 2

This is the white part of your eye that forms the general shape and structure of your eyeball.

Answer 2

Sclera

Question 3

This clear, thin layer covers the sclera and lines the inside of your eyelids.

Answer 3

Conjunctiva

Question 4

This part contains the muscles that control the size of your pupil. It’s also responsible for eye color.

Answer 4

Iris

Question 5

This is the black circle inside the iris.

Answer 5

Pupil

Question 6

This focuses light that enters your eye and directs it to the back of your eye.

Answer 6

Lens

Question 7

This clear, gel-like fluid fills the space between the lens and retina.

Answer 7

Vitreous humor

Question 8

It helps your eye hold its shape.

Answer 8

Vitreous humor

Question 9

It’s also sometimes known simply as “the vitreous.”

Answer 9

Vitreous humor

Question 10

This thin layer of light-sensitive cells at the back of your eyes converts light into electrical signals.

Answer 10

Retina

Question 11

It contains rods (which help you see in low light) and cones (which help you see colors).

Answer 11

Retina

Question 12

This small area of your retina is key to your vision.

Answer 12

Macula

Question 13

It’s responsible for the center of your visual field.

Answer 13

Macula

Question 14

It also helps you see color and fine details.

Answer 14

Macula

Question 15

This connects your retinas to your brain

Answer 15

Optic nerve

Question 16

It’s like the data cable that carries signals from your eyes, with connection points linking to multiple brain areas.

Answer 16

Optic nerve

Question 17

These control your eye’s position, alignment and movement

Answer 17

External muscles

Question 18

They also contribute to your eye’s shape, which is part of your ability to switch your vision’s focus between near and far objects.

Answer 18

External muscles