REM sleep is paradoxical because:
A)the brain is active,but the major skeletal muscles appear to be 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, but the body experiences a state of muscle paralysis called atonia. This is why it is referred to as paradoxical sleep. Option B and D are incorrect because the skeletal muscles are not active during REM sleep, and both the brain and body are active during REM sleep, making option C incorrect as well.

REM Sleep Is Paradoxical Because