Which of the Following Physiologic Changes Occur During Sleep

question 61

Multiple Choice

Which of the following physiologic changes occur during sleep?
I.Colonic motility is decreased
II.Penile tumescence occurs during REM
III.Plasma growth hormones peak during Stage N3
IV.The heart rate can increase by up to 35% during REM
V.Cerebral blood flow decreases during non-REM sleep

• A) I, II, III, IV, and V
• B) I, II, III only
• C) I, III, V only
• D) II, III, and V only

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Definitions:

Blood Sugar

The concentration of glucose in the bloodstream, critical for energy supply to cells and regulated by hormones like insulin.

Immune System

A complex network of cells, tissues, organs, and substances that help to protect the body from infections and diseases.

Prefrontal Cortex

A region at the front of the brain's frontal lobes, associated with higher cognitive processes such as decision-making, social behavior, and personality.

Negative Emotion

Feelings that are generally unpleasant to experience, such as sadness, anger, and fear.