In the two groups of descending tracts in the motor system, neurons of the ________ control the movements of the body trunk, whereas neurons of the ________ control movements of the hands and fingers.
A) ventromedial group; lateral group
B) primary motor cortex; secondary motor cortex
C) lateral group; ventromedial group
D) premotor cortex; nigrostriatal bundle
E) secondary motor cortex; primary motor cortex

Question

Quizplus · Accepted Answer

The ventromedial group of descending tracts in the motor system is responsible for controlling the movements of the body trunk, while the lateral group controls the movements of the hands and fingers.

In the Two Groups of Descending Tracts in the Motor