Which type of descending motor pathway conveys nerve impulses that originate in the cerebral cortex and are destined to cause precise,voluntary movements of skeletal muscles?
A)Indirect pathway
B)Direct pathway
C)Reflex arc
D)Somatic arc
E)Muscle spindle

Question

Quizplus · Accepted Answer

The direct pathway, also known as the pyramidal pathway, conveys nerve impulses that originate in the cerebral cortex and are destined to cause precise, voluntary movements of skeletal muscles. It is responsible for fine motor movements and involves the corticospinal tracts. The indirect pathway, on the other hand, is responsible for regulating muscle tone and involves the extrapyramidal tracts. A reflex arc is a neural pathway that mediates a reflex action, whereas a somatic arc and muscle spindle are not relevant to this question.

Which Type of Descending Motor Pathway Conveys Nerve Impulses That