Question

question 20
1 pts
if the dorsal root ganglia of the spinal nerve were destroyed, a person would lose _____
related to that pathway.
sensory perception
willed movement
only reflex activity
both reflex activity and sensation

Explanation:

Dorsal root ganglia contain cell bodies of sensory neurons. Sensory neurons carry sensory information (like touch, pain, temperature) to the central nervous system. Reflex arcs also involve sensory neurons (as part of the pathway: sensory neuron → interneuron → motor neuron). If dorsal root ganglia are destroyed, sensory information can't be transmitted (so no sensory perception) and reflex arcs, which need sensory input, also fail. Willed movement is mainly related to motor neurons (ventral roots).

Answer:

both reflex activity and sensation