Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

NEU211 Intro to Neuro > Audition (Hearing) > Flashcards

Audition (Hearing) Flashcards

Exam 2

1
Q

Audition

A

Act, sense, or power of hearing sound

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Sound

A

Series of pressure waves in air

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Frequency; How is it measured?

A

of waves

Measured in Hertz (Hz) or Kilohertz (kHz)
# of waves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

High pitch = _________ frequency

A

High

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Intensity; How is it measured?

A

Amplitude/height of waves; Measured in decibels (dB)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Auricle

A

Pinna of ear; funnels soundwaves to inner ear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

External auditory meatus

A

Connects auricle with eardrum; carries sound to eardrum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What substance does the external auditory meatus contain?

A

Cerumen (earwax)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Tympanic membrane

A

The eardrum; vibrates in response to sound waves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Middle ear is an air filled cavity with ________________

A

three bones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Oval window

A

Brings vibrations from ossicles to inner ear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Round window

A

Pushed out in response to inner ear waves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the three bones in the ear?

A
  1. Malleus (hammer)
  2. Incus (Anvil)
  3. Stapes (stirrup)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

These bones vibrate when the ___________ moves

A

eardrum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Inner ear is filled with fluid or air?

A

Fluid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Cochlea

A

hearing; a long coiled tube; looks like a snail

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are the three channels in the cochlea

A
  1. top tube (Scala Vestibule)
  2. middle tube (Scala tympani)
  3. bottom tube (Scala media)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Scala vestibule

A

Connects to oval window

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Scala tympani

A

Connects to round window

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Scala media

A

Holds the organ of corti

21
Q

Organ of Corti

A

Hair cells that change waves to electrical signals

22
Q

Hair Cells

A

Sensory receptors for sound

23
Q

Stereocilia

A

Stick out of top of cells

24
Q

What connects stereocilia to other stereocilia?

A

Tip links

25
Q

What type of gate channel is a tip link bound to?

A

Mechanical gated channels

26
Q

Endolymph

A

Surrounds the hair cells

27
Q

Perilymph

A

Surrounds the hair cell BODY

28
Q

Endolymph has a ___________ K+ ECF, while perilymph has a ____________ K+ ECF

A

High; Low

29
Q

Signal transduction

A

Changing waves to electrical impulses

30
Q

Does K+ enter or leave the cell through the mechanically gated tip links?

A

Enter

31
Q

Do hair cells send action potentials?

A

NO, only graded potentials

32
Q

Does K+ depolarize or repolarize the cell?

A

It does both!

33
Q

K+ entering the cell body depolarizes cell, opening the ____________

A

Voltage-gated Ca2+ channels

34
Q

The Intracellular calcium stimulates and releases what NT?

A

Excitatory glutamate

35
Q

K+ enters the cell from the endolymph because it is _______ in the ECF

A

High

36
Q

K+ exits the cell into the perilymph because of the ______________

A

Concentration gradient; high ICF concentration

37
Q

High pitch = _______ frequency

A

High

38
Q

Increasing the intensity means we increase the __________ of waves

A

amplitude

39
Q

Apex is _______ & ________

A

Thick and floppy

40
Q

Base is _________ & ___________

A

Thin and stiff

41
Q

Base is for _____ frequencies

A

High

42
Q

Apex is for ______ frequencies

A

Low

43
Q

The activation of the basilar membrane depends on the ____________________

A

different frequencies in use

44
Q

Trigeminal Ganglion

A

Cell bodies of neurons for head/neck/mouth

45
Q

Bilateral integration is important for ____________________________

A

Sound localization

46
Q

The pathway from the auditory nerve to the temporal lobe in brain (6)

A
  1. Same side ventral cochlear nucleus
  2. Bilateral superior olivary complex
  3. Lateral lemniscus
  4. Inferior colliculus
  5. Medial geniculate body
  6. Superior temporal gyrus
47
Q

What part of the brain is the MGN located in?

A

Thalamus

48
Q

What part of the brain is the Superior temporal gyrus in?

A

Temporal lobe

49
Q

How is the A1 organized?

A

tonotopically; There are special spaces for different frequencies

NEU211 Intro to Neuro (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions