Lesions to the pyramidal motor tract would produce difficulty in moving effectors on which side of the body?
A)The contralateral side.
B)The ipsilateral side.
C)Both the contralateral and ipsilateral sides.
D)Neither side: The pyramidal neurons do not innervate effector muscles.

Question

Quizplus · Accepted Answer

Lesions to the pyramidal motor tract would produce difficulty in moving effectors on the contralateral side of the body. The pyramidal tract is responsible for controlling voluntary movements of the skeletal muscles, and it crosses over to the opposite side of the body at the level of the brainstem. Therefore, a lesion on one side of the pyramidal tract would affect movement on the opposite side of the body.

Lesions to the Pyramidal Motor Tract Would Produce Difficulty in Moving