Monkeys could not move their fingers independently after transections of the
A) dorsolateral corticospinal tracts.
B) dorsolateral corticorubrospinal tracts.
C) ventromedial corticospinal tracts.
D) ventromedial cortico-brainstem-spinal tracts.
E) nigrostriatal tract.

Question

Quizplus · Accepted Answer

The dorsolateral corticospinal tracts are responsible for fine motor control of the digits, including independent finger movements. Transections of these tracts would lead to monkeys being unable to move their fingers independently. The other options listed do not specifically relate to finger movements.

Monkeys Could Not Move Their Fingers Independently After Transections of the