Chapter 8

Question 0

General sense organs

Answer 0

detect stimuli; widely distributed throughout the body

Question 1

Special sense organs

Answer 1

large and complex organs or bylocalized grouping of specialized receptors

Question 2

sclera

Answer 2

white outer coat of the eyeball

Question 3

choroid

Answer 3

middle layer of the eyeball that contains a dark pigment to prevent the scattering of lightrays

Question 4

retina

Answer 4

innermost layer of they eyeball; contains rods and cones and continues posteriorlly with the optic nerve

Question 5

conjunctiva

Answer 5

mucous membrane that covers the eyelids and sclera in the front

Question 6

lacrimal gland

Answer 6

makes tears

Question 7

pupil

Answer 7

black center of the iris; hole in the ciliary muscle

Question 8

lens

Answer 8

help focus on close and far objects

Question 9

presbyopia

Answer 9

when lenses lose the ability to focus on close objects because our lenses lose elasticity and can’t bring object into focus

Question 10

cataract

Answer 10

when a lens loses transparency and becomes milky

Question 11

rods

Answer 11

receptors for night vision

Question 12

cones

Answer 12

receptors for day vision

Question 13

fovea centralis

Answer 13

has the most concentration of cones of any area of the retina

Question 14

aqueous humor

Answer 14

watery fluid in front of lenses

Question 15

vitreous humor

Answer 15

jelly like fluid behind the lens

Question 16

glaucoma

Answer 16

prssure within the eye that could lead to blindness

Question 17

optic disc

Answer 17

blind spot

Question 18

auricle

Answer 18

appendage on the side of the head surrounding the opening of the external auditory canal

Question 19

typanic membrane

Answer 19

the “ear drum” or partition between external or middle ear

Question 20

ceruminous glands

Answer 20

produce a waxy substance called cerebrum that may collect in thecanal and impar hearing by absorbing or blocking sound waves

Question 21

ossicle

Answer 21

ear bone

Question 22

malleus

Answer 22

hammer shaped bones

Question 23

incus

Answer 23

anvil shaped bones

Question 24

stapes

Answer 24

stirrup shaped bones

Question 25

eutachian tube

Answer 25

connects throat with middle ear

Question 26

perilymph

Answer 26

watery fluid in the bony labrinth

Question 27

vetibule

Answer 27

adjacent to oval windows between

Question 28

cristaabpullaris

Answer 28

generates nerve impulses when you move your head

Question 29

organ or corti

Answer 29

the organ of hearing