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MED220 > Lecture10: Physiology Of Hearing Auditory Pathway > Flashcards

Lecture10: Physiology Of Hearing Auditory Pathway Flashcards

1
Q

What is the dorsal DCN pitch quality resoonsible for?

A

Dissecting tiny diff in frequencies

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2
Q

Do lesions of the chicles of one ear cause unilateral deafness?

A

Yes

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3
Q

What is the function of the Superior Olivary Nucleus?

A

Plays a key role in the localization of sounds

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4
Q

What is the function of the Inferior colliculus?

A

Integration of spatial information from the SON, along with acoustic reflexes

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5
Q

What is the origin of the Lateral Leminiscus?

A

SON

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6
Q

What is the termination of the Lateral Lemiscus?

A

IC

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7
Q

What is the Lateral lemiscus function?

A

Fibres of the Chochlear nucleus reach the central nucleus through it.

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8
Q

What is the method of organization of the Primary auditory cortex

A

Tonotopically organized

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9
Q

What is the Primary auditory cortex mapped according to?

A

Tone

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10
Q

How is the primary auditory cortex excited?

A

Via regions of the basillar membrane

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11
Q

What is the Secondsry Auditory cortex connected to?

A

Wernicke’s area

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12
Q

Is the Secondary auditory cortex a fast acting system?

A

Yes

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13
Q

Where do the secondary auditory cortex fibres synapse?

A

In the DCN

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14
Q

where do the secondary auditory cortex fibers decussate?

A

Lateral leminiscus of the inferior colliculus

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15
Q

What is the Monoaural sound localization responsible for?

A

Vertical sound mapping in the external ear pinna

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16
Q

What is the Binaural sound localization responsible for?

A

Both interaural intensity and time diff

17
Q

What is associated with the Binaural?

A

SON

18
Q

What is Acoustic trauma and viral infection causes of?

A

Sensorineural hearing loss

19
Q

Does prolonged use of antibiotics result in sensorineural hearing loss?

A

Yes

MED220 (24 decks)

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