chapter 9

Question 1

Purpose of the eye

Answer 1

To gather light from the environment and form an image on the retina

Question 2

retina

Answer 2

on the back of the eye

Question 3

Optic nerve

Answer 3

The nerve that carries impulses from the eye to the brain

Question 4

Sclera

Answer 4

The white outer layer of the eye

Question 5

Aqueous humor

Answer 5

Thin watery fluid

anterior

Question 6

Vitreous humor

Answer 6

Jelly like substance

Posterior chamber behind the lens

Question 7

Lens

Answer 7

The dividing point Between the posterior and anterior

Question 8

iris made up of

Answer 8

muscle

Question 9

eyelids are covered by membrane called

Answer 9

conjunctiva

Question 10

tears produced by

Answer 10

lacrimal gland

Question 11

night vision retinal cells

Answer 11

rods

Question 12

daylight vision & color retinal cells

Answer 12

cones

Question 13

optical disc that contains no visual receptors

Answer 13

blind spot

Question 14

lobe of the brain where visual patterns are interpreted

Answer 14

occipital lobe

Question 15

nearsighted

Answer 15

myopia

Question 16

myopia

Answer 16

eye too long

Question 17

farsighted

Answer 17

hyperopia

Question 18

hyperopia

Answer 18

eyeball too short

Question 19

irregular curvature of the lens

Answer 19

astigmatism

Question 20

the bending of light as it passes through the eye

Answer 20

refraction

Question 21

area of the brain that processes auditory information

Answer 21

temporal lobe

Question 22

eardrum

Answer 22

tympanic membrane

Question 23

long slender tube leading from the middle of the ear to the back of the throat

Answer 23

eustachian tube

Question 24

snail-like structure in the inner ear

Answer 24

cochlea

Question 25

stimulated by chemicals dissolved in the mucus that allow you to smell

Answer 25

olfactory receptors

Question 26

contain 70% of the body’s sensory receptors

Answer 26

eye

Question 27

tears contain

Answer 27

saline, lysosomes, antibacterial antibodies

Question 28

transfers vibration from eardrum to anvil

Answer 28

hammer

Question 29

transfers vibration from anvil to fluid in inner ear

Answer 29

stirrup

Question 30

sends static equilibrium info to the cerebellum about head position

Answer 30

vestibule

Question 31

small peg-like projections on dorsal surface of tongue

Answer 31

taste buds

Question 32

produces earwax

Answer 32

serebous gland

Question 33

pathway of light

Answer 33

``` cornea aqueous humor pinna lens vitreous humor retina ```

Question 34

pathway of sound

Answer 34

``` pinna external auditory canal eardrum hammer anvil stirrup cochlea ```