Chapter 8-Senses

Question 0

general sense organs

Answer 0

microscopic receptors widely distributed throughout the body

Question 1

Special Sense Organs

Answer 1

characterized by large and complex organs or by localized groupings of specialized receptors

Question 2

photoreceptor

Answer 2

receptors in the retina

Question 3

chemoreceptor

Answer 3

receptors that respond to chemicals and are responsible for taste and smell

Question 4

thermoreceptor

Answer 4

d

Question 5

propioceptors

Answer 5

receptors locted in muscles, tendons, and joints

allows body to recognize position

Question 6

sclera

Answer 6

white outer coat of the eyeball

Question 7

choroid

Answer 7

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

Question 8

retina

Answer 8

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

Question 9

conjunctia

Answer 9

mocuous membrane that covers the eyelids and sclera in the front

Question 10

lacrimal gland

Answer 10

makes tears

Question 11

pupil

Answer 11

black center of the iris; hgole in the ciliary muscle

Question 12

lens

Answer 12

helps focus on close and far objects

Question 13

presbyopia

Answer 13

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

Question 14

cataract

Answer 14

when a lens loses transparency and becomes milky in appearance

Question 15

rods

Answer 15

receptors for night vision

Question 16

cones

Answer 16

receptors for day vision

Question 17

fovea centralis

Answer 17

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

Question 18

aqueous humor

Answer 18

watery fluid in front of the lens

Question 19

vitreous humor

Answer 19

jelly like fluid behind the lens

Question 20

glaucoma

Answer 20

pressure within the eye that could lead to blindness

Question 21

optic disc

Answer 21

“blind spot”

Question 22

auricle

Answer 22

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

Question 23

external auditory canal

Answer 23

d

Question 24

tympanic membrane

Answer 24

the “eardrum” or partition between external or middle ear

Question 25

ceruminous glands

Answer 25

produce a waxy substance called cerumen that may collect in the canal and impair hearing by absorbing or blocking sound waves

Question 26

ossicle

Answer 26

ear bones

Question 27

malleus

Answer 27

hammer shaped bones

Question 28

incus

Answer 28

anvil shaped bones

Question 29

stapes

Answer 29

stirrup shaped bones

Question 30

eustachian tube

Answer 30

connects throat with middle ear

Question 31

bony labyrinth

Answer 31

a complex maze in the temporal bone

Question 32

perilymph

Answer 32

watery fluid in the bony labryinth

Question 33

vestibule

Answer 33

adjacent to oval windows between

Question 34

semicircular canals

Answer 34

d

Question 35

cochlea

Answer 35

d

Question 36

endolymph

Answer 36

thick fluid within the membranous labyrinth

Question 37

crista ampullaris

Answer 37

generates nerve impulses when you move your head

Question 38

vestibular nerve

Answer 38

joins with cochlear nerve to form the acoustic nerve

Question 39

organ of corti

Answer 39

the organ of hearing

Question 40

cochlear duct

Answer 40

membraneous tube within the bony cochlea

Question 41

papillae

Answer 41

large structures on the tongue

Question 42

gustatory cells

Answer 42

generate impulses; special cells in taste buds

Question 43

olfactory receptors

Answer 43

smell receptors