Nurs 283 quiz 5 - Study guides, Class notes & Summaries

NURS 283: Quiz 5What are the stages of sleep? - correct answer NREM: 2 stages - N1: haziness, lasts 1-5 minutes - N2: brain activity, HR, & respirations slow; muscles may twitch N3: Delta stage - deep sleep - delta waves in the brain - body heals itself (releases growth hormone) REM: - N4: brain is very active; vivid dreams; body is temp. paralyzed repeat in 90 minute increments body can do through the cycle 5-6x What is the physiology of sleep? - correct answer Circadian ...