human ear

Question 1

the visible part of the ear is called the —- or the —–. It is made of cartilage

Answer 1

pinna or the auricle

Question 2

this part of the ear is concerned with the transmission of the sound

Answer 2

outer ear

Question 3

what does the outer ear consist of:

Answer 3

the pinna
the outer layer of the eardrum also called the tympanic membrane

Question 4

the ear canal is filled with — and is about — long

Answer 4

air, 2.5cm

Question 5

the skin surrounding the ear canal contains —– that secrete —-

Answer 5

glands, ear wax

Question 6

this is a part of the ears protection mechanism

Answer 6

ear wax

Question 7

it is a small air filled space connecting the outer and inner ear

Answer 7

middle ear

Question 8

the primary function of this part of the ear is to conduct sound waves through the tympanic membrane to the cochlear via the ear bones.

Answer 8

middle ear

Question 9

what is the primary function of the middle ear?

Answer 9

to conduct sound waves through the tympanic membrane to the cochlear via the ear bones

Question 10

what is the three smallest bones in the body that is part of the middle ear?

Answer 10

hammer (malleus)
anvil (incus)
stirrup (stapes)

Question 11

hammer (malleus)
anvil (incus)
stirrup (stapes)

are the bones collectively known as —. Sound waves cause them to vibrate

Answer 11

the ossicles

Question 11

this is inside the middle ear. it controls the pressure within the ear.

Answer 11

eustachian tube

Question 12

the —- ear has 2 main functions, to convert sound waves into electrical signals for the brain and to maintain balance by detecting position and motion

Answer 12

inner ear

Question 13

what is the primary function of the inner ear?

Answer 13

to convert sounds waves in to electrical signals for the brain and to maintain balance by detecting position and motion

Question 14

the inner ear has 3 main parts

Answer 14

the cochlear
the semi-circular canals
the vestibule

Question 15

it is filled with liquid and acts like a microphone, converting soundwaves to nerve impulses that travel to your brain via the auditory nerve

Answer 15

cochlear

Question 16

these two canals help you to balance

Answer 16

vestibule and semi-circular canals

Question 17

parts of the outer ear

Answer 17

pinna
cartilage
wax glands
ear canal
tympanic membrane

Question 18

parts of the middle ear

Answer 18

hammer (malleus)
anvil (incus)
ear drum
stirrup (stapes)
eustachian tube

Question 19

parts of the inner ear

Answer 19

semi-circular canals
auditory nerve
vestibule
cochlear

Question 20

how do we hear? first step

Answer 20

soundwaves are funnelled into our ear canal by the pinna

Question 21

after soundwaves hit our ear canal by the pinna whats next

Answer 21

soundwaves make our ear drum vibrate

Question 22

after the ear drums vibrate from the soundwaves whats next

Answer 22

vibrations of the ear drum cause the 3 small bones in the ear called the ossicles to move

Question 23

after the movement of the ossicles whats next

Answer 23

as the last bone in the chain, the stapes, vibrates this causes wave like movements to be generated in the fluid inside the cochlear

Question 24

after the wave like movement is generated in the fluid inside the cochlear whats next

Answer 24

these waves stimulate microscopic hairs inside the coclear

Question 24

after the waves stimulate microscopic hair inside the cochlear whats next

Answer 24

the hairs in the cochlear are tunes to respond to differences in sound frequency and pitch

Question 25

after the response of the hair in the cochlear whats next

Answer 25

when stimulated these hair cells generate nerve impulses that are transferred to the auditory nerve

Question 26

after the nerve impulses are transferred to the auditory nerve whats next

Answer 26

the nerve impulses travel along the auditory nerve into the hearing center of the brain called the auditory cortex

Question 27

after the nerve impulses travel to the auditory cortex whats next

Answer 27

it delivers the message to the brain

Question 28

after the message or sound is delivered to the brain whats next

Answer 28

the auditory cortex converts the nerve impulses into the sound that we hear.