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Neuro Block 5-RG > Sleep/ARAS > Flashcards

Sleep/ARAS Flashcards

1
Q

Ascending reticular activating system

A

promotes wakefulness with monoamines and acetylcholine

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2
Q

Lateral hypothalamus

A

orexin promotes wakefulness

melanin-concentrating hormone promotes sleepiness

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3
Q

This disease is a complete loss of orexin secretion

A

narcolepsy

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4
Q

Beta waves

A

awake and thinking (low amplitude)

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5
Q

Alpha waves

A

eyes closed and relaxed

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6
Q

Theta waves

A

drowsy

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7
Q

Delta waves

A

slow-wave sleep (high amplitude)

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8
Q

In which stage of sleep do sleep spindles occur?

A

II

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9
Q

Restorative sleep

A

first 1 hr.

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10
Q

What is the pathology of apnea?

A

loss of palate muscle tone

=>collapse and wake up

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11
Q

Pontine tegmental nuclei

part of ascending reticular activating system

A

LDT
PPT
activate thalamus during wakeing

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12
Q

Reticular nucleus of thalamus

A

inhibits thalamus, promotes sleeping

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13
Q

Reticular nucleus of thalamus and bursts

A

complex pathway causes brief bursts of cortical activity and immediate inhibition

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14
Q

REM behavior disorder pathology

A

loss of orexin

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15
Q

ACh from ARAS during

A

wake and REM (subset)

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16
Q

Monoamines active during

A

wake and non-REM

17
Q

Orexin active during

A

wake

18
Q

MCH active during

A

REM

19
Q

VLPO/MNPO active during

preoptic areas

A

non-REM and REM

20
Q

PPT and LDT function to do this during wakefulness and REM

A

activation thalamus–> activate cortex

21
Q

Reticular nucleus functions to

A

inhibit thalamus during non-REM
+ complex feedback system
= BURSTS

Neuro Block 5-RG (17 decks)

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