The Eye

Question 1

Cornea

Answer 1

A tough clear cover of the front of the eye.

Question 2

Sclera

Answer 2

The thick, tough, white outer coating of the eye

Question 3

Iris

Answer 3

A muscle that controls how much light enters the eye.

Question 4

Pupil

Answer 4

The hole that lets light into the eye

Question 5

Aqueous Humor

Answer 5

Clear fluid that helps the cornea keep it’s shape.

Question 6

Lens

Answer 6

Clear Flexible structure that makes and focuses an image onto the retina.

Question 7

Ciliary Muscle

Answer 7

Tiny Muscles around the lens that squeeze and stretch the lens to focus.

Question 8

Vitreous Humor

Answer 8

Thick jelly-like substance that gives the eye it’s shape.

Question 9

Optic Nerve

Answer 9

Sends the electrical messages to the brain.

Question 10

Retina

Answer 10

Sensitive tissue which lines the back of the eye containing rods and cones.

Question 11

Fovea

Answer 11

Small area on retina that gives sharpest vision and only contains cones.

Question 12

Photoreceptors

Answer 12

Light Sensitive cells (rods and cones)

Question 13

Rods

Answer 13

Cells found in Retina that sense the degree of brightness that helps us see in the dark.

Question 14

Cones

Answer 14

Cells located in the retina that sense colors with long, medium, and short wavelenghts.