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19 Cards in this Set

  • Front
  • Back
circadian rhythm
complete a full cycle every 24 hours
delta sleep
deep-sleep state; slow-wave sleep (Stages II and IV)
dyssomnias
sleep disorders characterized by insomnia or excessive sleepiness
enuresis
urinating during sleep
hypersomnia
excessive sleep, particularly during the day
insomnia
difficulty falling asleep, intermittent sleep, or early awakening from sleep
melatonin
natural chemical produced at night that decreases wakefulness and promotes sleep
narcolepsy
uncontrollable desire to sleep
nocturnal myoclonus
jerking of one or both legs during sleep
non-rapid eye movement (NREM) sleep
75% of total sleep;
parasympathetic nervous system increases; pulse, RR, BP, metabolic rate, and body temp decrease
4 stages
parasomnias
patterns of waking behavior that appear during sleep
rapid eye movement (REM) sleep
20 - 25% of total sleep;
pulse, RR, BP, metabolic rate, and body temp increase;
skeletal muscle tone and deep tendon reflexes are depressed
rest
body is in a decreased state of activity with the consequent feeling of being refreshed
restless leg syndrome
cannot lie still; unpleasant creeping. crawling, or tingling sensations occur in the legs
sleep
a state of rest accompanied by altered consciousness and relative inactivity
sleep apnea
the absence of breathing (apnea) or diminished breathing efforts (hypopnea) during sleep between snoring intervals
sleep cycle
where a person passes consecutively through the four stages of NREM sleep
sleep deprivation
decrease in the amount, consistency, or quality of sleep
somnambulism
sleep walking