structures and functions

Question 1

it is the organ and hearing equilibrium.

Answer 1

ear

Question 2

what are the three distinct parts of the ear?

Answer 2

external, middle, inner ear.

Question 3

the ____ separates the external ear to the middle ear.

Answer 3

tympanic membrane

Question 4

what is the equipment used to assess external ear and tympanic membrane?

Answer 4

otoscope

Question 5

it is composed of the auricle or pinna, and the external auditory canal.

Answer 5

external ear

Question 6

it is the portion of the external ear visible without any tools.

Answer 6

the auricle (pinna)

Question 7

composed of a thin plate of yellow elastic cartilage covered by tigth-fitting skin.

Answer 7

auricle (pinna)

Question 8

is S shaped in the adults; the outer part of the canal curves up and back

Answer 8

external auditory canal

Question 9

a wax like substance that keeps the tympanic membrane soft.

Answer 9

cerumen

Question 10

is a small air-filled chamber in the temporal lobe and is separated from the external ear by the tympanic membrane (eardrum)

Answer 10

middle ear or tympanic cavity

Question 11

ha sa translucent, pearly gray appearance and serves as a partition streteched accross the inner war of the audtiroy canal

Answer 11

tympanic membrane (eardrum)

Question 12

the nearest auditory ossicles that can be seen through the translucent membrane

Answer 12

handle and short process of the malleus

Question 13

the base of the malleus, also serving as a center point landmark

Answer 13

umbo

Question 14

the reflection of the otoscope light seen as a cone due to the concave nature of the membrane

Answer 14

cine of light

Question 15

the top portion of the membrane that appears to be less taut than the bottom portion

Answer 15

pars flaccida

Question 16

the bottom of the membrane that appears to be taut

Answer 16

pars tensa

Question 17

what are the three auditory ossicles of the middle ear?

Answer 17

maleus, incus and the stapes

Question 18

it is responsible for transmitting sound waves from the eardrum to the inner ear through the oval window

Answer 18

auditory ossicles

Question 19

air pressure is equalized on both sides of the tympanic membrane by means of the ___ which connects the middle ear to the nasopharynx

Answer 19

eustachian tube

Question 20

is fluid filled and made up of the bony labyrinth and an inner mamebraneous labyrinth

Answer 20

inner ear or labyrinth

Question 21

what are the three parts of the bony labyrinth?

Answer 21

the cochlea, the vestibule and semi circular canals

Question 22

it contains the spiral organ of corti, which the sensory organ for hearing

Answer 22

inner cochlear duct

Question 23

it is located in the vestibule and in the membranous semicircular canals, sense position and head movements to hell maintain both static and dynamic equilibrium

Answer 23

sensory receptors

Question 24

it connects with the cochlear nerve to to form the eighth cranial nerve

Answer 24

vestibular nerve

Question 25

the transmission of sound waves through the external and middle ear is referred to as

Answer 25

conductive hearing

Question 26

transmission of sound waves in the inner ear is referred to as

Answer 26

perceptive or sensorineural hearing

Question 27

a conductive hearing loss would be related to a dysfunction of what part of the ear?

Answer 27

external or middle ear

Question 28

a sensorineural loss would be related to the dysfunction of what part of the ear?

Answer 28

inner ear

Question 29

this bone conduction, serves to augment the usual pathway of sound waves through air, bone and finally fluid.

Answer 29

bones of the skull

Question 30

a sudden decrease in ability to hear in one ear may be associated with...

Answer 30

otitis media or cerumen impaction

Question 31

it is a sudden deafness up to a 3 day period.

Answer 31

sensorineural hearing loss

Question 32

what are the conductive phase

Answer 32

air conduction bone conduction sensorineural phase