Ch. 18 Day 2

Question 1

part of ear that collects sound waves and directs them to middle ear

Answer 1

external ear

Question 2

part of ear we can see

Answer 2

auricle/pinna

Question 3

2nd part of where sound waves go

Answer 3

external acoustic meatus

Question 4

seperates external and mid ear

Answer 4

tympanic membrane

Question 5

line ear canal

Answer 5

ceruminous glands

Question 6

most of middle ear is the

Answer 6

typmanic cavity

Question 7

tube in ear that is about 4 cm long

Answer 7

auditory tube

Question 8

auditory tube helps

Answer 8

equalize pressure/balance

Question 9

middle ear three auditory ossicles

Answer 9

malleus, incus, stapes

Question 10

malleus fake name

Answer 10

hammer

Question 11

incus fake name

Answer 11

anvil

Question 12

stapes fake name

Answer 12

stirrup

Question 13

malleus articulates with the

Answer 13

tympanic membrane

Question 14

when malleus vibrates it vibrates the

Answer 14

incus

Question 15

stapes sits on what

Answer 15

oval window

Question 16

auditory ossicles are important to

Answer 16

amplify sounds

Question 17

muscles that protect violent vibrations for middle ear

Answer 17

tensor tympani, stapedius

Question 18

inner ear is where there is

Answer 18

balance and equilibrum special house receptors

Question 19

coiled pathway in the ear is the

Answer 19

bony labyrinth

Question 20

snail head of bony labyrinth is called

Answer 20

vestibule

Question 21

snail antena of bony labrinith is called

Answer 21

semicircular canals

Question 22

middle of snail bony labrinith

Answer 22

cochlea

Question 23

soft structure in snail bony labyrinth

Answer 23

membranous labyrinth

Question 24

soft structure to fill in the

Answer 24

utricle
saccule

Question 25

soft structure to fill in semicircular canals

Answer 25

semicircular ducts

Question 26

soft structure to fill in cochlea

Answer 26

coclear duct

Question 27

fluid in bony labyrinth

Answer 27

perilymph

Question 28

fluid in membranous labyrinth

Answer 28

endolymph

Question 29

in vestibule two sacs called

Answer 29

utricle and saccule

Question 30

utricle and saccule contain clusters of hair cells called

Answer 30

maculae

Question 31

cilia of hair cells are embedded into

Answer 31

otolithic membrane

Question 32

otolithic membrane is packed with crystals called

Answer 32

otoliths

Question 33

hair cells synapse with afferent fibers from CN

Answer 33

CNVII

Question 34

utricle orientation

Answer 34

horizontally

Question 35

saccule orientation

Answer 35

vertically

Question 36

utricle to sense

Answer 36

forward acceleration and deceleration

Question 37

saccule to sense

Answer 37

verticle acceleration and deceleration

Question 38

semicicular ducts detect

Answer 38

angular motion

Question 39

each semicircular duct has a swelling called

Answer 39

ampulla

Question 40

ampulla have clustors of

Answer 40

hair cells

Question 41

hair cells of ampulla are on

Answer 41

ampullary crest

Question 42

cilia of hair cells are embedded in

Answer 42

ampullary cupula

Question 43

hair cells monitored by neurons from the

Answer 43

vestibular ganglion

Question 44

axons of these vestibular ganglion form

Answer 44

vestibular nerve

Question 45

coiled makes 2.5 turns in the central hub

Answer 45

cochlea

Question 46

cochlea central hub called

Answer 46

modioulus

Question 47

central cochlear duct is filled with

Answer 47

endolymph

Question 48

cochlea oval window is at the base of the

Answer 48

vestibular duct

Question 49

oval window filled with

Answer 49

perilymph

Question 50

round window is at base of

Answer 50

tympanic duct

Question 51

round window is filled with

Answer 51

perilymph

Question 52

spiral organ aka

Answer 52

organ of corti

Question 53

spiral organ have cilia of

Answer 53

hair cells

Question 54

spiral organ more flexible basilar membrane than

Answer 54

tectorial membrane

Question 55

spiral organ hair cells monitored by neurons from the

Answer 55

spiral ganglion

Question 56

axons of spiral ganglion form the nerve CN

Answer 56

CNVIII

Question 57

basilar membrane that is low frequency has

Answer 57

low pitch

Question 58

CNVIII cochlear nuclei is in the

Answer 58

medulla oblongata

Question 59

CNVIII has inferior colliculi on

Answer 59

both sides thalamus auditory cortex