Hearing

Question 1

Vestibular Sense

Answer 1

helps you keep your balance and sense your body’s position in space

Question 2

1️⃣what happens at the pinna/auricle?
2️⃣what is it’s function ?

Answer 2

1️⃣it is the cartilaginous outside part of the ear where the sound wave first reaches
2️⃣ Channel sound waves into the external auditory canal

Question 3

What does bony labyrinth contain ?

Answer 3

cochlea, vestibules, semicircular canals

Question 4

what does membranous labyrinth contain ?

Answer 4

bathed in K rich fluid

Question 5

endolymph

Answer 5

K rich fluid in which membranous labyrinth baths

Question 6

perilymph

Answer 6

thin layer of fluid that suspends membranous in the bony

Question 7

External auditory canal

Answer 7

direct sound waves to the tympanic membrane/eardrum

Question 8

Eardrum/ tympanic membrane

Answer 8

Vibrates when sound waves come

Question 9

Which sound waves have greater intensity and more amplitude?

Answer 9

Louder sounds

Question 10

what do sound waves with higher frequency do?
Vibrate more or less?

Answer 10

Vibrate more

Question 11

What are the bones connected to the eardrum called together and individually?

Answer 11

Stapes, malleus & incus are called ossicles

Question 12

What does the eustachian tube do?

Answer 12

It connects the middle ear to the nasal cavity

Question 13

Where do high and low frequency sound waves go in the cochlea?

Answer 13

High frequency sound waves are detected at the start and
low frequency sound waves are detected in the end of the cochlea

Question 14

basilar tuning

Answer 14

process by which the basilar membrane in the cochlea of the inner ear responds to different frequencies of the sound
in short = Responding to different frequencies of the sound

Question 15

Contralateral side

Answer 15

Acting on the opposite side of the body

Question 16

ipsilateral side

Answer 16

Acting on the same side of the body

Question 17

elliptical window

Answer 17

window where the fluid starts flowing in the cochlea

Question 18

circular window

Answer 18

Window that is opened when the fluid flows in the opposite direction in the cochlea

Question 19

What is the top of the hair cell called and what is on top of it?

Answer 19

it is called hair bundle and it contains kinocilium

Question 20

tip link

Answer 20

spring that joins kinocilium to the others

Question 21

tono-typical mapping

Answer 21

map inside the brain for each frequency that is connected to the frequency dedicated part of the cochlear

Question 22

which ion enters the hair cell when the tip link is stretched?

Answer 22

K+ ions