When during sleep does REM occur? A. Stage 1 sleep, during the first sleep cycle only B. Stage 3 sleep of each sleep cycle C. Stage 1 sleep, after completing the first sleep cycle D. Stage 2 sleep of each sleep cycle

When during sleep does REM occur? A. Stage 1 sleep, during the first sleep cycle only B. Stage 3 sleep of each sleep cycle C. Stage 1 sleep, after completing the first sleep cycle D. Stage 2 sleep of each sleep cycle

Cardiopulmonary Anatomy & Physiology

7th Edition

ISBN:9781337794909

Author:Des Jardins, Terry.

Publisher:Des Jardins, Terry.

Chapter17: Sleep Physiology And Its Relationship To The Cardiopulmonary System

Section: Chapter Questions

Problem 7RQ

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Concept explainers

Sleep Physiology

Sleep is a condition of reduced muscle movement in the body. Awareness about the surroundings is reduced at the time of sleep. The body stays mildly responsive or non-responsive to external stimuli. The sleep-wake cycle is controlled by the circadian rhythm that produces a resting phase for the body.

Question

When during sleep does REM occur?

A. Stage 1 sleep, during the first sleep cycle only
B. Stage 3 sleep of each sleep cycle
C. Stage 1 sleep, after completing the first sleep cycle
D. Stage 2 sleep of each sleep cycle

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