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10 Cards in this Set
- Front
- Back
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In what stage of sleep do dreams occur? |
REM and NREM sleep We remember REM dreams (more vivid) |
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What is circadian rhythm? |
24 hour day-night cycle affected by light, temp, noise, activities |
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What system controls sleep regulation? |
Reticular activated system (RAS) - contain cells Receives visual, auditory, pain stimuli Cerebral cortex stimulates RAS Wakefulness |
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What is sleep caused by? |
Release of serotonin Depends on balance of impulses from higher centres (thoughts) and peripheral sensory receptors (sound), and limbic system (emotions) |
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What is the cycle/stages of sleep? |
4 to 6 cycles - 4 of NREM and 1 of REM With each cycle, stages 3 and 4 shorten and REM lengthens |
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What can alter sleep? |
Pain Difficulty Breathing Nocturia Restless Leg Syndrome Insomia |
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What many hours of sleep should neonates, infants, toddlers, preschoolers, school age, teens, young adults and adults get? |
Neo - 16 Infants - 10-12 Toddlers - 12-14 Preschool - 13 School Age - 9-10 Teens - 9 (varies) Young Adults - 6-8 Adults - Decline |
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What are some common sleep changes in older adults? |
Get sleepy early in evening Insomnia Wake up early, can't get back to sleep |
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Why do older adults have sleep problems? |
Sleep-wake cycle not working as well Less sleep hormones Lifestyle habits Pain |
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Why is sleep important? |
Restoration |
