Difficulty holding a pen to write would MOST likely result from damage to the:
A) lateral corticospinal tract.
B) ventral corticospinal tract.
C) corticobulbar tract.
D) rubrospinal tract.

Question

Quizplus · Accepted Answer

The lateral corticospinal tract is responsible for the voluntary control of skeletal muscles in the limbs. Damage to this tract can cause weakness or paralysis on the opposite side of the body from where the damage occurred. Difficulty holding a pen to write would be a result of weakness or paralysis in the hand and arm, which is controlled by the lateral corticospinal tract. Therefore, A) is the best choice.

Difficulty Holding a Pen to Write Would MOST Likely Result