2.4

Question 1

What does the stapes do to produce fluid

Answer 1

Pushes oval window which produces fluid waves in endolymph of cochlea

Question 2

What does the waves causes that the stapes produces

Answer 2

Push on the scala media and produce movement of a portion depending on frequency

Question 3

What absorbs the vibration of the endolymph

Answer 3

Absorbed by the round window

Question 4

What is the basilar membrane constructed as

Answer 4

As a tanotopic organ

Question 5

True or false

Basilar membrane consist of hair cells

Answer 5

True

Question 6

What does the temporal field respresent

Answer 6

Info coming from the medial side but showing through the lateral portion of the eye

Question 7

What does the nasal field represent

Answer 7

Info coming from the lateral side but showing on the medial side of the eye

Question 8

Which layer receives info coming from the thalamus

Answer 8

Layer 4

Question 9

Which layer sends info out to the spinal cord

Answer 9

Layer 5

Question 10

How is orientation set up for the visual cortex

Answer 10

By going across

Question 11

Visual cortex has ocular dominance which allows what?

Answer 11

It means stuff coming back from the visual cortex is coming from the same field in different eyes

Question 12

What is an example of ocular dominance

Answer 12

Info goes to the right nasal and left temporal field, and starts at the left visual cortex

Question 13

What does binocular vision allow for

Answer 13

Depth perception

Question 14

What are the two streams of the visual stream

Answer 14

Dorsal and ventral stream

Question 15

What’s the characteristic of the dorsal stream and which lone does it go to

Answer 15

(Spatial vision) pathway goes to the parietal lobe

Question 16

What’s the characteristic of the ventral field and which line does it go to

Answer 16

(Object recognition) pathway goes to the temporal lobe

Question 17

What does changes in pressure cause

Answer 17

Sound

Question 18

What is frequency related to

Answer 18

Pitch of noise

Question 19

What is amplitude related to

Answer 19

Loudness of noise

Question 20

What is location related to

Answer 20

Spatial origin of the nose

Question 21

What does collection and amplification system cause

Answer 21

Ossicles amplify force air vibration and push on the oval window

Question 22

What does the middle of the ear contain

Answer 22

Tympanic membrane

Question 23

True or false

Tympanic membrane vibrates with sound

Answer 23

True

Question 24

Is the basilar membrane thicker or thinner as you go towards the apex

Answer 24

Thicker

Question 25

Which basilar membrane cause a high pitch and low pitch

Answer 25

Thinner basilar membrane causes a high pitch Thicker basilar membrane causes a lower pitch

Question 26

What does movement of the basilar membrane cause

Answer 26

Shearing force that bends the stereocilia of the hair cells

Question 27

What are the characteristic of the outer hair cells

Answer 27

They are efferent systems that act to filter specific frequencies which allow selective attention

Question 28

What's the characteristic of inner hair cells

Answer 28

They are actual sensory receptors which project auditory nerves to the brain

Question 29

What happens when the stereocilia pushes against the kinocilium

Answer 29

It depolarizers and K+ ions go into the stereocilia

Question 30

What happens as the kinocilium pushes against the stereocilia

Answer 30

It hyperpolarizes and the channel remains closed

Question 31

What are two important pathways of ascending auditory pathways

Answer 31

Spinal ganglia and superior olivary nucleus

Question 32

What's the function of the superior olivary nucleus

Answer 32

Coincidence detectors

Question 33

What's the purpose of a narrow base of the basilar membrane

Answer 33

Tuned for high frequencies

Question 34

What is the function a wilder apex of the of the basilar membrane

Answer 34

Low frequencies

Question 35

True or false | The auditory system is not bilateral

Answer 35

False

Question 36

What are the three bones in the ear

Answer 36

Malleus, stapes, incus