Module 7 Sleep Flashcards

1
Q

What is absent in poor sleepers

A

K complexes

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2
Q

What does k complex do

A

Protects sleep

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3
Q

Which stage of sleep is the most critical for waking up feeling refreshed

A

Stage 3

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4
Q

Explain the final stage of sleep R.E.M. rapid eye movements

A

Brain becomes highly active
High wave frequency
Eyes flick
Times of night when you are most likely to fully wake
Tiny area in brain that blocks signals to muscles
When you dream

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5
Q

Babies spend what amount of time in which sleep

A

50% in REM sleep

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6
Q

Babies of three months spend how much time in R.E.M. sleep

Drops to what percentage at 6 months

A

30%

20%

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7
Q

What amount of sleep is spent in R.E.M. in early adulthood and early childhood

A

2 hours adulthood

8 hours childhood

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8
Q

What amount of time is spent in R.E.M. in over 70s

A

45 minuets

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9
Q

Less sleep can result in what

A
Weight gain
Hormone secretion 
Moods
Poor Willpower 
Bigger Appetite
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10
Q

How many sleep cycles will most people experience per night if rested well

A

5-6

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11
Q

Each sleep cycle lasts approximately how long?

A

90 mins

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12
Q

R.E.M. sleep seems important for what

A

Infant (and there developments) learning

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13
Q

Each sleep stage has a specific purpose Stage 2 seems to be important for?
Stage 3 for?

A

Memories and sleep protection

Rejuvenation

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14
Q

Waking during stage 1 and 3 leads to?

A

Worst sleep inertia

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15
Q

The three main theories as to why we sleep are refers to as what names

A

Restoration
Synaptic plasticity
Energy conservational

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16
Q

How many different brainwaves does the brain have

Name them in lowest frequency

A

5

Delta theta alpha beta gamma

17
Q

Which neuronal projection below is involved in receiving information
Axon
Flagella
Dendrite

18
Q

Sleep is mediated by what two things in the body

A
Circadian rhythm(governed by theSuprachiasmatic nuclei)
Homeostat pathway
19
Q

Which stage is referred to as deep sleep

20
Q

Which wave type indicates the highest activity
Delta
Gamma
Beta

21
Q

Which sleep stage is most responsible for adenosine and fatigue clearance

22
Q

Which stage of sleep are you completely paralysed

23
Q

The human circadian rhythm naturally dips at what times

A

2 to 3am and 2 to 3pm

24
Q

In what stage of sleep is your urine production switched off

25
How does caffeine effect you
Blocks adenosine receptors and create a mood boosting effect
26
More than two glasses of Alcohol does what to R.E.M. sleep
Eliminates it
27
If you don’t sleep enough what do you get a build up of
Adenosine
28
What are the positive effects of going outside during the morning and course of the day
Neurotransmitter melatonin is released early in the evening to help you feel sleepy
29
What job does the SCN do
Regulates the internal clock of every cell within your body
30
Which area of the brain is involved in adenosine buildup
The frontal cortex
31
Which gland releases the melatonin
Pineal
32
SCN is referred to as what and receives information from the what
The master body clock | Retina
33
SCN is in what part of the brain
Hypothalamus
34
Each neuron has these | 3
Mitochondria Nucleus Endoplasmic reticulum And other organelles
35
What neurotransmitters are released when a signal crosses the presynaptic neuron
GABA Dopamine Melatonin
36
Synchronised electrical pulses from masses of neurons is called
Brainwaves
37
R.E.M. sleep is activated by two neurotransmitters called | And in which area of the brain
Acetylcholine Melatonin Pans area
38
What are the two proteins called inside your SCN | They translate into two protein genes called
CLOCK BMAL1 CRY PER