auditory structures

Question 1

external and middle ear function

Answer 1

hearing

Question 2

inner ear function

Answer 2

hearing and equilibrium

Question 3

external ear parts

Answer 3

auricle/pinna
external auditory canal
tympanic membrane

Question 4

auricle/pinna

Answer 4

elastic cartilage covering skin
helps direct sound to external auditory canal

Question 5

external auditory canal

Answer 5

lined with hairs and cermunous glands

Question 6

tympanic membrane

Answer 6

eardrum
border between external ear and middle early
thin layer of two layers of epithelium with connective tissue in between
vibrates from soundwaves

Question 7

middle ear

Answer 7

air filled space with auditory ossicles and two passages for air

Question 8

auditory or eustachian tube

Answer 8

opening to pharynx, equalizes pressure

Question 9

second air opening is passage to _____in mastoid process

Answer 9

mastoid air cells

Question 10

pathway of middle ear

Answer 10

tympanic membrane–>malus–>incus–>stapes–> foot of stapes in oval window

Question 11

oval window

Answer 11

connection between inner ear and middle ear
foot of stapes help in place by annular ligament

Question 12

inner ear made of

Answer 12

bony labrynth and membrenous labrynth

Question 13

bony labrynth

Answer 13

tunnels and chambers in temporal bone

Question 14

cochlea (of bony labrynth) function

Answer 14

hearing

Question 15

vestibule (of bony labrynth) function

Answer 15

balance

Question 16

semicircular canals (of bony labrynth) function

Answer 16

balance

Question 17

membranous labyrinth

Answer 17

membranous tunnels and chambers suspended bony labyrinth

Question 18

endolympth

Answer 18

in membranous labryinth

Question 19

perilymph

Answer 19

in spaces between membraneous labrynth and periostium of bony labrynth

Question 20

three regions of the cochlea

Answer 20

scala vestibuli,scala tympani and cochlear duct (scala media)

Question 21

scala vestibuli connects to the

Answer 21

oval window

Question 22

scala tympani (2nd choclear chamber) connects to the

Answer 22

round window

Question 23

scala vetibuli and scala tympani are filled with

Answer 23

perilymph

Question 24

path from oval window

Answer 24

scala vetibuli–>helicotrema–> scala tympani–> round window

Question 25

scala vestibuli is ___membrane

Answer 25

vestibular membrane

Question 26

scala tympani is ____membrane

Answer 26

basilar membrane

Question 27

cochlear duct (scala media)

Answer 27

space betwen vestibular and basilkar membrane
filled with endolymph

Question 28

near oval window basilar membrane responds to______ vibrations

Answer 28

high frequency

Question 29

near helicotrema basilar membrane responds to _____vibrations

Answer 29

low frequency

Question 30

spiral organ (organ of corti)

Answer 30

contains hair cells (sensory cells)
located in cochlea duct

Question 31

sterocillia

Answer 31

hair like microvilai on ends of hair cells

Question 32

tips of inner hair cells embedded in

Answer 32

tectorial membrane