Which of the following statements explains why sensations felt on the left side of the body are received by the right cerebral hemisphere?
A) There is no explanation for this occurrence.
B) Axons of third-order neurons cross over to the opposite side of the CNS.
C) First-order neurons cross over to the opposite side of the CNS.
D) Axons of second-order neurons in a sensory pathway cross over to the opposite side of the CNS.

Question

Quizplus · Accepted Answer

In a sensory pathway, axons of second-order neurons cross over to the opposite side of the CNS through a structure called the decussation of the sensory pathway. This means that sensory information from the left side of the body is processed by the right cerebral hemisphere and vice versa.

Which of the Following Statements Explains Why Sensations Felt on the Left