Module 7 Sleep Flashcards
What is absent in poor sleepers
K complexes
What does k complex do
Protects sleep
Which stage of sleep is the most critical for waking up feeling refreshed
Stage 3
Explain the final stage of sleep R.E.M. rapid eye movements
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
Babies spend what amount of time in which sleep
50% in REM sleep
Babies of three months spend how much time in R.E.M. sleep
Drops to what percentage at 6 months
30%
20%
What amount of sleep is spent in R.E.M. in early adulthood and early childhood
2 hours adulthood
8 hours childhood
What amount of time is spent in R.E.M. in over 70s
45 minuets
Less sleep can result in what
Weight gain Hormone secretion Moods Poor Willpower Bigger Appetite
How many sleep cycles will most people experience per night if rested well
5-6
Each sleep cycle lasts approximately how long?
90 mins
R.E.M. sleep seems important for what
Infant (and there developments) learning
Each sleep stage has a specific purpose Stage 2 seems to be important for?
Stage 3 for?
Memories and sleep protection
Rejuvenation
Waking during stage 1 and 3 leads to?
Worst sleep inertia
The three main theories as to why we sleep are refers to as what names
Restoration
Synaptic plasticity
Energy conservational
How many different brainwaves does the brain have
Name them in lowest frequency
5
Delta theta alpha beta gamma
Which neuronal projection below is involved in receiving information
Axon
Flagella
Dendrite
dendrite
Sleep is mediated by what two things in the body
Circadian rhythm(governed by theSuprachiasmatic nuclei) Homeostat pathway
Which stage is referred to as deep sleep
Stage 3
Which wave type indicates the highest activity
Delta
Gamma
Beta
Gamma
Which sleep stage is most responsible for adenosine and fatigue clearance
Nrem3
Which stage of sleep are you completely paralysed
R.E.M.
The human circadian rhythm naturally dips at what times
2 to 3am and 2 to 3pm
In what stage of sleep is your urine production switched off
R.E.M.
How does caffeine effect you
Blocks adenosine receptors and create a mood boosting effect
More than two glasses of Alcohol does what to R.E.M. sleep
Eliminates it
If you don’t sleep enough what do you get a build up of
Adenosine
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
What job does the SCN do
Regulates the internal clock of every cell within your body
Which area of the brain is involved in adenosine buildup
The frontal cortex
Which gland releases the melatonin
Pineal
SCN is referred to as what and receives information from the what
The master body clock
Retina
SCN is in what part of the brain
Hypothalamus
Each neuron has these
3
Mitochondria
Nucleus
Endoplasmic reticulum
And other organelles
What neurotransmitters are released when a signal crosses the presynaptic neuron
GABA
Dopamine
Melatonin
Synchronised electrical pulses from masses of neurons is called
Brainwaves
R.E.M. sleep is activated by two neurotransmitters called
And in which area of the brain
Acetylcholine
Melatonin
Pans area
What are the two proteins called inside your SCN
They translate into two protein genes called
CLOCK
BMAL1
CRY
PER
