Chapter 6 Part 3 Flashcards

1
Q

Fluid filled space

A

Labyrinth

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

Acts as a device to transform acoustic/mechanical energy (sound) into electrochemical energy

A

Inner ear

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

vestibule communicates with the _____

A

Cochlea

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

What is part of the vestibular portion of the inner ear?

A

Vestibule and semicircular canals

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

concerning the position and movement of the body (balance)

A

Vestibular portion

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

Portion of the inner ear concerned about hearing

A

Auditory portion

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

What does the auditory portion of the inner ear include?

A

Cochlea

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

How many canals does the cochlea have?

A

3

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

extends from the oval window in the vestibule to the helicotrema (small opening in the apex of the cochlea). Part of bony labyrinth. Filled with perilymph.

A

Scala vestibuli

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

extends from the round window in the vestibule to the helicotrema. Part of bony labyrinth. Placement of CI electrodes. Filled with perilymph.

A

Scala tympani

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

the central duct is also referred to as the cochlear duct. Part of the membranous labyrinth. Filled with endolymph. Bound by 2 thin membranes.

A

Scala media

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

separates scala media from scala vestibuli.

A

Reissner’s membrane

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

separates scala media from scala tympani.

A

Basilar membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Ligament support for the scala media

A

Spiral ligament

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

Produces endolymph & supplies 
oxygen & other nutrients 
to the cochlea

A

Stria vascularis

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

Organ of hearing

A

Organ of corti

17
Q

Where is the organ of corti housed in?

A

Scala media

18
Q

small hairlike projections on the ends of each of the hair cells (inner and outer).

A

Stereocilia

19
Q

Low frequencies: maximum displacement near the _____ turn

A

Apical

20
Q

High frequencies: maximum displacement near the ____ turn

A

Basal

21
Q

transmits nerve impulses from inner ear to brainstem.

A

Acoustic nerve (VIII)

22
Q

What 2 types of nerves are part of the VIII nerve?

A

Cochlear and vestibular

23
Q

How many turns does the cochlea have?

A

3

24
Q

What are the 3 turns in the cochlea?

A

Basal, middle, apical

25
Q

What type of liquid is in the scala vestibuli and scala tympani?

A

Perilymph

26
Q

What type of liquid is in the scala media?

A

Endolymph

27
Q

How many rows of inner hair cells do we have?

A

1

28
Q

How many rows of outer hair cells do we have?

A

3-4

29
Q

High frequency is detected in the ____ of the cochlea

A

Base

30
Q

Low frequency is detected in the _____ of the cochlea

A

Apex

31
Q

What is tonotopic maps/organizations?

A

Low frequencies: maximum displacement near the apical turn

High frequencies: maximum displacement near the basal turn

32
Q

What makes up the VIII cranial nerve?

A

Vestibular nerve + cochlear nerve