Sometimes People Find Themselves Unable to Move Their Postural Muscles

question 112

Multiple Choice

 Sometimes people find themselves unable to move their postural muscles immediately after awakening. Why?

• A) Blood pressure is too low.
• B) The motor nerves are inactive until body temperature reaches its normal level.
• C) An increase in light striking the eyes reflexively inhibits the motor neurons.
• D) Part of the brain is still asleep.

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