Motor Pathways

Item #1 of 10

Which of the following statements are true for the pyramidal motor system?

It controls discrete and voluntary movements.;

Its signals are conveyed via the corticospinal tract of the dorsolateral pathway.;

Its pathway originates primarily within the primary motor cortex.;

Its pathway crosses to the other side of the nervous system in a structure located in the medulla called the pyramids.;

All of the alternatives provided are correct.;

CORRECT - Yes, the pyramidal motor system controls discrete, voluntary movements. It originates within the primary motor cortex and travels via the corticospinal tract of the dorsolateral pathway, crossing in the pyramids of the medulla on its way down to alpha motor neurons of the spinal cord.

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		It controls discrete and voluntary movements.;
		Its signals are conveyed via the corticospinal tract of the dorsolateral pathway.;
		Its pathway originates primarily within the primary motor cortex.;
		Its pathway crosses to the other side of the nervous system in a structure located in the medulla called the pyramids.;
		All of the alternatives provided are correct.;