Author Question: In the classic transection experiments of Lawrence and Kuypers, monkeys with all their dorsolateral ... (Read 40 times)

cmoore54 · **on:** Jun 22, 2018

In the classic transection experiments of Lawrence and Kuypers, monkeys with all their dorsolateral motor pathways transected sat with their arms hanging limply by their sides. However, these same monkeys had no difficulty

A) picking up pieces of food and then releasing them.
B) using their arms for standing, walking, and climbing.
C) reaching for moving objects.
D) moving their fingers independently.
E) all of the above

Question 2

Most axons of the dorsolateral corticorubrospinal tract synapse on

A) muscles of the fingers and thumb.
B) muscles of the hands and wrists.
C) interneurons of the spinal gray matter that in turn synapse on motor neurons that project to the distal muscles of the arms and legs.
D) motor neurons that project to the fingers.
E) Betz cells.