Brainscape's Knowledge GenomeTM

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


See full index

Microanatomy > Ear > Flashcards

Ear Flashcards

1
Q

What are the functions of the ear?

A

collect auditory stimuli
transduce the mechanical stimuli
transmit nerve impulses to CNS

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

What are the three parts of the ear?

A

external
middle
inner

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

What is the pinna?

A

outside of ear

elastic cartilage

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

What are cerminous glands?

A

located within skin of external acoustic canal
apocrine gland
ear wax

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

What is the tympanic membrane?

A

between external and middle ear

poorly vascularized

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

What is tympanic cavity lined by?

A

simple squamous to cuboidal, air filled

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

What are the auditory ossicles?

A

malleus, incus and stapes

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

What is the tensor tympani m.?

A

muscle of malleus

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

T or F: the vibration of sound on the tympanic membrane is transmitted through the middle ear to the cochlea?

A

true

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

What is eustachian tube?

A

communication between middle ear and nasophrayx

air pressure equalization

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

What is the guttural pouch?

A

ventral expansion of the eustachian rube in a horse

can be infected with fungus

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

What are the two parts of the inner ear?

A

bony labyrinth

membranous labyrinth

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

What does the bony labyrinth contain?

A

vestibule
semicircular canals
cochlea

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

What does the membranous labyrinth contain?

A

endolymph
cochlear duct
utricle, saccule
semiciruclar ducts

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

What is the cochlea subdivided into ?

A

scala vestibuli
cochlear duct
scala tympani

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

What is the pathway of sound?

A 
outer ear
tympanic membrane
maleus, incus, stapes
vestibular window
scala vestibulli
helicotrema
scala tympani
deflects cochlear duct and stimulates spiral 
stimulates organ of corti
17
Q

What is the organ of corti?

A

hair cells for sterocilla
phalangeal cells for support
pillar cells moved by sound energy

18
Q

What is the vestibular apparatus?

A

organs of equilbrium and motion detection
macula utriculi
macula sacculi
crista ampullaris

19
Q

What is otoliths?

A

gravitational movement of endolymph in saccule and utricle displace these

20
Q

What are semicircular ducts?

A

canals are right angles to one another

angular accleration and deceleration

21
Q

T or F: displacement of cupula of endolymph stimulates hair cells in the crista ampullaris of the semicircular ducts?

A

true

Microanatomy (7 decks)

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