Over 90 Percent of Nervous System Pathways Decussate

Question

Over 90 percent of nervous system pathways decussate.What does "decussate" mean?
A)Branch extensively
B)Carry information to and from the same effector
C)Cross from one side of the body to the other
D)Switch from carrying motor information to carrying sensory information
E)None of the choices is correct.

Accepted Answer

Decussate means to cross from one side of the body to the other. Therefore, over 90 percent of nervous system pathways cross from one hemisphere of the brain to the opposite side of the body.