Which of the following statements about REM sleep is TRUE? Question 3 options: While dreaming, eyes may dart around as if watching a dream unfold. Dreams occur only in REM sleep. The diaphragm, nasal membranes, and erectile tissue cannot move during dreams because of loss of muscle tone. Time spent in REM sleep decreases later in the sleep cycle. Save

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Biology

Maxine

1 November, 15:05

Which of the following statements about REM sleep is TRUE? Question 3 options: While dreaming, eyes may dart around as if watching a dream unfold. Dreams occur only in REM sleep. The diaphragm, nasal membranes, and erectile tissue cannot move during dreams because of loss of muscle tone. Time spent in REM sleep decreases later in the sleep cycle. Save

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Yadira · Answer 1

The correct answer would be While dreaming, eyes may dart around as if watching a dream unfold.

REM sleep or rapid eye movement sleep is one of the stages of the sleep cycle which is marked by random or rapid movement of the eyes.

It usually lasts for 10-15 minutes in the first sleep cycle. However, it keeps on increasing with progressive sleep cycle and can reach up to the duration of 60-90 minutes in adults.

Changes observed during REM sleep are:

Random movement of eyes Elevated heart rate Fast breathing Elevated blood pressure Increased brain activity (similar to that observed while awake) Sexual arousal (in both men and women) et cetera.