NERVOUS SYSTEM SPECIAL SENSE
CEREBRUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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TRUE statements about primary motor area
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Smooth movement
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Coordinate muscle contractions
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Controls muscles contralaterally
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The wider cortex controls larger muscles
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Explanation:
Detailed explanation-1: -One of the brain areas most involved in controlling these voluntary movements is the motor cortex. The motor cortex is located in the rear portion of the frontal lobe, just before the central sulcus (furrow) that separates the frontal lobe from the parietal lobe.
Detailed explanation-2: -Motor commands for the arm and hand generally arise from the contralateral motor cortex, where most of the relevant corticospinal tract originates. However, the ipsilateral motor cortex shows activity related to arm movement despite the lack of direct connections.
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