Skeletal muscle tone in REM sleep is

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Multiple Choice

Skeletal muscle tone in REM sleep is

REM sleep features a state of REM atonia, where brainstem circuits actively suppress spinal motor neurons to prevent acting out dreams. This results in near-complete paralysis of voluntary skeletal muscles, so skeletal muscle tone is effectively absent during REM sleep. While eye movements occur and occasional brief twitches can happen, the overall tone of skeletal muscles is not preserved or increased; it is essentially absent.

REM sleep features a state of REM atonia, where brainstem circuits actively suppress spinal motor neurons to prevent acting out dreams. This results in near-complete paralysis of voluntary skeletal muscles, so skeletal muscle tone is effectively absent during REM sleep. While eye movements occur and occasional brief twitches can happen, the overall tone of skeletal muscles is not preserved or increased; it is essentially absent.

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