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Fast, crossing paths from Pyramids in cortex, esp. for precise control of peripheral moves _____.

User Jdgray
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Final answer:

The corticobulbar tract and the corticospinal tract are responsible for precise control of peripheral moves.

Step-by-step explanation:

The brain pathways responsible for precise control of peripheral moves are the corticobulbar tract and the corticospinal tract. These descending pathways carry motor commands from the primary motor cortex to activate the muscles. The axons of the corticobulbar tract project from the cortex to the motor nucleus on the same side of the nervous system, while the axons of the corticospinal tract largely cross the midline of the brain stem or spinal cord and synapse on the opposite side of the body. This means that the right motor cortex controls muscles on the left side of the body, and vice versa.

User Shuwen
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