Sleep

Question 1

Name the 2 principal stages of sleep and how much of sleep they constitute?

Answer 1

Non REM Sleep - 75-80%

REM (Rapid Eye Movement) Sleep - 20-25%

Question 2

Non REM sleep occurs in stages of increasing _________. Eye and body movements __________ as sleep depth increases. Body is in a ________________ state with slow stable vital signs. ___________ body temperature. Cerebral blood flow ____________.

Answer 2

DEPTH
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DIMINISH
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PARASYMPATHETIC
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DECREASED
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DECREASES

Question 3

REM sleep occurs in __________ with Non REM. REM cycle lengths increase with most occurring in the _______ third. Includes sleep _________, also called psuedo-paralysis. Brain is very active and blood flow to it __________. Burts of eye movement, and irregular patterns of BP, HR and _______________.

Answer 3

CYCLES
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FINAL
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ATONIA
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INCREASES
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RESPIRATION

Question 4

Sleep is involved in the regulation of __________ levels, and replenishment of ____________ stores.

Answer 4

GLUCOSE
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GLYCOGEN

Question 5

Sleep is involved in the restoration of __________ blood cell counts.

Answer 5

WHITE

Question 6

Sleep places focus on the ___________ processes of metabolism.

Answer 6

ANABOLIC

tissue building

Question 7

What does sleep do for the brain? (5)

Answer 7

INCREASED PROTEIN SYNTHESIS
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CLEAN UP REDUNDANT SYNAPSES
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ORGANIZE WORKING MEMORY
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CONSOLIDATE FACT/SKILL MEMORY
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EMOTIONAL RESTORATION

Question 8

What does sleep do for learning?

Answer 8

REM INCREASES WHEN NEW SKILLS LEARNED
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NEWBORNS GO DIRECTLY INTO REM
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ESSENTIAL FOR CORTICAL ASSOCIATION FUNCTIONS
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LIFETIME SLEEP PATTERNS REQUIRE CHILDHOOD SLEEP

Question 9

Name the 3 “Sleep Controls”?

Answer 9

HOMEOSTATIC REGULATION - time, phys/emo need
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CIRCADIAN RHYTHM - hypothalamus, light/dark
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ULTRADIAN RHYTHM - combo of above

Question 10

A person’s ____________ determines whether they are morning or night people.

Answer 10

CHRONOTYPE

Question 11

Name the key area of the brain involved in sleep/wake regulation?

Answer 11

HYPOTHALAMUS

• ensures rapid transition
• ant hypothalamus: sleep inducing
• post hypothalamus: wake promoting
• uses autonomic functions like body temp

Question 12

What are the Sleep Wake Regulators?

chemicals, neuotransmitters, hormones

Answer 12

ADENOSINE - accumulates in brain, inhibiting arousal-promoting neurons
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MELATONIN - secreted by pineal gland, part of circadian
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ACETYLCHOLINE - activation aspects of REM, waker
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GABA - inhibitory neurotransmitter, promotes sleep onset
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HYPOCRETINS - waker, overrides sleep urge
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SEROTONIN, NOREPINEPHRINE, HISTAMINE - wakers

Question 13

Accumulated “sleep debt” is called what?

Answer 13

SLEEP DEPRIVATION