Which of the following terms go together?
A) decussation; ipsilateral
B) ventral corticospinal tract; control of the fingers
C) decussation; contralateral
D) lateral corticospinal tract; control of the upper legs
E) pyramidal tract; pons

Question

Quizplus · Accepted Answer

Decussation refers to the crossing over of neural pathways from one side of the body to the other, resulting in contralateral control. Ipsilateral control refers to neural pathways that stay on the same side of the body. Therefore, decussation and contralateral are related terms.

Answer: B
 The ventral corticospinal tract is responsible for controlling fine motor movements, including those of the fingers. Therefore, the ventral corticospinal tract and control of the fingers are related terms.

Answer: D
 The lateral corticospinal tract is responsible for controlling motor movements of the limbs, including the upper legs. Therefore, the lateral corticospinal tract and control of the upper legs are related terms.

Answer: E
 The pyramidal tract is a group of neural pathways responsible for controlling voluntary movements. The pons is a region of the brainstem which plays a role in relaying signals between different regions of the brain. While both terms are related to neural function, they do not necessarily go together as one does not imply the other.

Which of the Following Terms Go Together