REM sleep is paradoxical because
A) the brain is active, but the major skeletal muscles are paralyzed.
B) the skeletal muscles remain active, but the brain is inactive.
C) the brain is less active than it is during other sleep stages.
D) both the brain and the body are inactive.

Question

Quizplus · Accepted Answer

During REM sleep, the brain is highly active and appears awake on EEG recordings. However, the major skeletal muscles are atonic or paralyzed, which is why it is known as paradoxical sleep.

REM Sleep Is Paradoxical Because