Unit 3: Parts of the Eye

Question 1

Lens

Answer 1

The transparent structure behind the pupil that changes shape to help focus images on the retina. (called accommodation)

Question 2

Retina

Answer 2

The back of the eye that contains receptive rods and cones, as well as neurons that send messages to the brain

Question 3

Rods

Answer 3

Detect white, black, and grey. Necessary for peripheral and twilight vision

Question 4

Cones

Answer 4

Detect colors and details. Function in the daylight and well-lit conditions

Question 5

Fovera

Answer 5

The central focus point in the retina, where all the cones cluster

Question 6

Bipolar cells

Answer 6

Neurons that connect the rods and cones with ganglion cells

Question 7

Ganglion cells

Answer 7

Connect to the bipolar cells and bundle to form the optic nerve

Question 8

Blind spot

Answer 8

The point where the optic nerve leaves the eye, creating a “blind” spot because there are no receptor cells there

Question 9

Cornea

Answer 9

Protects the eye

Question 10

Pupil

Answer 10

The black part in the iris, allows light to enter

Question 11

Iris

Answer 11

Colored part of the eye, opens and closes to allow light in