Afferent and efferent axons travel together in spinal nerves, but they separate into different bundles when they leave and enter the spinal cord. The afferent axons enter the spinal cord via the______ root and efferent axons leave the spinal cord via the______root.
A) canal : spindle
B) ventral : dorsal
C) dorsal : ventral
D) ascending : descending
E) descending : ascending

Question

Quizplus · Accepted Answer

Afferent axons, which carry sensory information to the central nervous system, enter the spinal cord via the dorsal root. Efferent axons, which carry motor commands from the central nervous system to muscles and glands, leave the spinal cord via the ventral root.

Afferent and Efferent Axons Travel Together in Spinal Nerves, but They