Hearing

Question 0

the passageway that directs sound waves from the auricle to the tympanic membrane

Answer 0

external auditory canal

outer ear

Question 1

The fleshy, cartilaginous external ear flap located on the side of the head.
It functions to collect sound waves and direct them into the external auditory canal

Answer 1

auricle or pinna

outer ear

Question 2

commonly called the “EARDRUM”. it separates the outer and middle ears.
the eardrum vibrates when struck by sound waves and mechanically transfers the sound to the middle ear

Answer 2

tympanic membrane: eardrum

outer ear

Question 3

these glands secrete cerumen, or earwax, into the external auditory canal.
they are located at the base of hairs that line the canal.
in combination with the hair, cerumen helps prevent foreign substances from reaching the delicate tympanic membrane.

Answer 3

Ceruminous glands

outer ear

Question 4

an ear ossicle(ear bone) commonly called the hammer.
it is attached to the inside surface of the tympanic membrane.
it articulates with the incus and transmits vibrations from the tympanic membrane to the incus

Answer 4

Malleus

middle ear

Question 5

an ossicle commonly called the anvil.

it articulates with the malleus and stapes and transmits vibrations from the malleus to the stapes

Answer 5

incus

middle ear

Question 6

an ossicle commonly called the stirrup. it articulates with the incus and the oval window and transmits vibrations from the incus to the oval window

Answer 6

stapes

middle ear

Question 7

an opening between the middle and inner ear.
the stapes attaches to the membrane over the oval window, and transfers the vibrations to the fluid in the inner ear.
the membrane over the oval window is 22 times smaller than the tympanic membrane this size difference magnifies the vibrations and enables the hearing of low amplitude sounds

Answer 7

oval window
(middle ear)

Question 8

an opening directly below the oval window.
covered by a secondary tympanic membrane.
bulges out into the middle ear to dissipate the pressure waves within the cochlea, after they have been detected by the inner ear.

Answer 8

round window
(middle ear)

Question 9

a tube connecting the middle ear and the nasopharynx.
it equalizes the air pressure in the middle ear with that of atmospheric pressure, enabling the tympanic membrane to vibrate freely

Answer 9

eustachian tube

middle ear

Question 10

a small skeletal muscle which protects the oval window by dampening the vibration of the stapes in response to loud noises

Answer 10

stapedius

middle ear

Question 11

small skeletal muscle which limits movement of ossicles and increase tension of the tympanic membrane to prevent damage inresponse to loud, prolonged noises

Answer 11

tensor tympani

middle ear

Question 12

a series of interconnected passageways in the temporal bone

Answer 12

bony labyrinth
(inner ear)

Question 13

a series of interconnected fluid-filled tubes found within the bony labyrinth

Answer 13

membranous labyrinth
(inner ear)

Question 14

A part of the bony labyrinth resembling a snail shell.

it contains the cochlear duct

Answer 14

cochlea

inner ear

Question 15

part of the membranous labyrinth found within the cochlea.

it contains the hearing receptor cells

Answer 15

cochlear duct

inner ear

Question 16

a part of the bony labyrinth containing the saccule and utricle

Answer 16

vestibule

inner ear

Question 17

a pair of membranous sacs found within the vestibule that contain the receptor cells for gravity and linear acceleration

Answer 17

saccule and utricle

inner ear

Question 18

part of the bony labyrinth containing the semicircular ducts

Answer 18

semicircular canals

inner ear

Question 19

series of three fluid-filled ducts found within the semicircular canals. they are oriented at right angles to each other on three planes
the receptors in the ducts provide information on the position of the head and body in space, acceleration, and deceleration.

Answer 19

semicircular ducts

inner ear