3.1 Vision and the Eye

Question 1

What are the five special senses?

Answer 1

vision
smell
taste
hearing
equilibrium

Question 2

What sense is the only one without a specialized sense organ?

Answer 2

touch

Question 3

What does touch include?

Answer 3

pain
pressure
vibration
heat

Question 4

What is the organ responsible for sight?

Answer 4

eye

Question 5

How many layers are in the eye?

Answer 5

three

Question 6

What is the outer layer of the eye?

Answer 6

sclera and cornea

Question 7

What is the white of the eye?

Answer 7

sclera

Question 8

What is the posterior and anterior portion of the outer layer of the eye?

Answer 8

posterior = sclera
anterior = cornea

Question 9

What is the cornea?

Answer 9

transparent part of the eye

Question 10

Where does light enter the eye?

Answer 10

cornea

Question 11

What is between the cornea and the lens?

Answer 11

aqueous humor

Question 12

What is included in the middle layer of the eye?

Answer 12

choroid
cilliary muscle
iris

Question 13

What prevents light from dispersing throughout the eye

Answer 13

choroid

Question 14

What is the choroid?

Answer 14

highly vascular and supplies blood to other layers of the eye

Question 15

What is the function of the ciliary body?

Answer 15

change the shape of the lens allowing it to focus

Question 16

What does the iris contain?

Answer 16

colored portion of the eye

Question 17

What is the function of the iris?

Answer 17

controls the amount of light that is let into the pupil

Question 18

What is the pupil?

Answer 18

hole in the middle of the iris

Question 19

What is the inner layer of the eye?

Answer 19

retina

Question 20

What does the retina contain?

Answer 20

two types of photoreceptors