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Hearing Science > Test 2 > Flashcards

Test 2 Flashcards

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1
Q

The peripheral auditory system…

A

collects and conducts sound energy
performs frequency intensity analysis (Fourier analysis)
transmits that electrical energy to the central auditory pathway

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2
Q

The central auditory system is responsible for…

A

auditory memory
receiving electrical signals
localization

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3
Q

True or False:

The pinna collects and transmits sounds to the middle ear through the EAM

A

True

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4
Q

The Concha Effect…

A

improves hearing for high frequency sounds

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5
Q

True or False:

The anterior 1/3 of the EAM is the bony portion of the external auditory canal

A

False- the anterior 1/3 of the EAM is the softer, cartilaginous portion of the external auditory canal

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6
Q

True or False:

The posterior 2/3 of the EAM is the bony portion of the external auditory canal

A

True

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7
Q

True or False:

Wax in the ear acts as a lubricant and provides protective function

A

True

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8
Q

True or False:
The stapedius muscle provides protection from loud sounds (85 dB and greater) and for low frequencies (1000 Hz and below)

A

True

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9
Q

True or false

The oval and round windows are located on the lateral wall of the middle ear

A

False- the oval and round windows are located on the medial wall of the middle ear

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10
Q

The tympanic membrane (ear drum) is on which wall of the middle ear?

A

The lateral wall

We can see this looking into the ear

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11
Q

True or False:

The tympanic membrane and the oval window provides you a dB (SPL) gain of 25dB (SPL)

A

True

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12
Q

The posterior wall of the middle ear…

A

contains the mastoid air cells

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13
Q

Mastoiditis…

A

is when an infection from the middle ear goes through the posterior wall (through the aditus) and results in an infection of the mastoid bone

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14
Q

Eustachian tube connects…

A

the middle ear to the back of the throat through the anterior wall of the middle ear

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15
Q

Which middle ear land marks can you see with an otoscope?

A

manubrium, pars tensa, and cone of light

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16
Q

The tensor tympani is attached to the handle of the malleus and it is innervated by which nerve?

A

a branch of the trigeminal nerve (carotid tympani nerve)

17
Q

Which cranial nerve supplies the stapedius

A

Facial nerve (CN VII)

18
Q

3 primary functions of the middle ear…

A

pressure gain
equalize pressure
protection

19
Q

Middle ear provides us with dB gain of…

A

30 dB

20
Q

The mechanical lever action of the middle ear ossicles provide us with dB gain of…

A

5 dB

21
Q

The bony protrusion between the oval and round window is referred to as…

A

promontory

22
Q

True or False:

The tendon of the stapedius is contained in the pyramid

A

True

23
Q

The Organ of Corti sits on…

A

the basilar membrane

24
Q

True or False:

The scala media, scala tympani, and scala vestibuli are all part of the bony labyrinth

A

False- only the scala vestibuli and scala tympani are part of the bony labyrinth

25
Q

The scala media is part of the…

A

membranous labyrinth

26
Q

Bony labyrinth contains…

A

perilymphatic fluid
cochlea
semicircular canals
vestibule

27
Q

Membranous labyrinth is filled with…

A

endolymphatic fluid

28
Q

The vestibulocochlear nerve carries what information?

A

balance and hearing information

29
Q

The basilar membrane divides which chambers…

A

scala media and scala tympani

30
Q

Auditory nerve fibers enter the cochlea through a tiny opening called…

A

habenula perforata

31
Q

The base of the basilar membrane is tuned to respond to what frequencies?

A

high frequencies

32
Q

True or False:

inner and outer hair cells have cilia

A

True

33
Q

The tallest of the cilia in the cochlea is called the…

A

sterocilia

34
Q

Outer hair cells respond to sounds between what dB?

A

0-40 dB (SPL)

35
Q

Inner hair cells respond to sounds between what dB?

A

> 40 dB (SPL)

36
Q

95% of the auditory nerve (CN VIII) fibers supply _____, and 5% supplies ____.

A

inner hair cells;

outer hair cells

Hearing Science (2 decks)

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