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anatomy and physiology 2 > hearing > Flashcards

hearing Flashcards

1
Q

what is the outer ear made of ?

A

elastic cartilage

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2
Q

what is the external auditory meatus ?

A

the ear canal

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3
Q

are the parts closest to the external of the ear curved or straight?

A

curved

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4
Q

is the medial side of the external auditory meatus bony?

A

yes

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5
Q

how does the external auditory meatus get cleaned?

A

it is self cleaning

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6
Q

where does earwax get produced?

A

the outer ear

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7
Q

what is the tympanic membrane?

A

the eardrum

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8
Q

where is the eardrum located?

A

between the outer and middle ear

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9
Q

what happens to the eardrum when sound touches it?

A

it vibrates

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10
Q

be able to describe the perfusion disease of the middle ear

A
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11
Q

where is the middle ear located?

A

inside the temporal bone

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12
Q

what are some things in the middle ear?

A

the ossicles and the auditory tube

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13
Q

where does the auditory tube lead to?

A

the pharynx

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14
Q

what are the 3 ossicles of the middle ear?

A

malleus, incus, stapes ( learn in this order)

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15
Q

what is the oval window?

A

the part of the middle ear that is connected to the stapes

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16
Q

what is the purpose of the auditory tube?

A

it connects the middle ear to the throat and equalizes pressure

17
Q

what helps to open and close the auditory tube?

A

muscles in the throat

18
Q

what is the cochlea?

A

a snail shaped bony structure in the middle ear

19
Q

what are the 3 regions of the cochlea?

A

the scala vestibuli, cochlear duct, scala tympani

20
Q

what are the scala’s filled with

A

pherylymph (a fluid)

21
Q

what is the cochlear duct filled with ?

A

endolymph (a fluid)

22
Q

what is the spiral organ?

A

the hair cells that contain microvili

23
Q

which nerve innervates the spiral organ?

A

the chochlear nerve

24
Q

what makes up conductive hearing?

A

outer ear, middle ear

25
Q

what makes up sensorineural hearing?

A

the inner ear and neural pathway

26
Q

conductive hearing loss is because of damage to which parts of the ear?

A

outer and middle ear

anatomy and physiology 2 (6 decks)

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