Sleep Flashcards
2 phases of sleep in normal sleep
NREM, REM
NREM sleep
deeper sleep N1-N3
REM sleep
near arousal with muscle atonia, except EOM
metabolic function during sleep
suppressed
areas that contribute to the ARAS
orexin neurons and hypothalamus
where is the ARAS
brainstem
main sleep promoting areas of the CNS
SCN and VLPO inhibit the RAS via GABA
circadian rhythm is set by
daylight exposure to the RGC which signal to SCN to produce melatonin on 24 hour cycle
Alpha wave on EEG seen when
relaxed wakefulness, or awake eyes closed when trying to sleep
N2 has what waves
theta waves with sleep spindles and k complexes
N3 has what waves
deepest sleep has delta waves (slow waves)
REM waves on EEG
look like wakefulness, low amplitude fast frequency with mixed gamma, beta and alpha
what is narcolepsy
excessive daytime sleepiness with spontaneous bouts of sleep and cataplexy associated with less orexin
what is insomnia
chronic sleep insufficiency usually associated with common psychiatric disorders managed by non-benzodiazepine hypnotics or benzos
parasomnias are what
any sort of disturbance that may disturb sleep depth or duration