A reflex arc involves a sensory neuron, a motor neuron, and a(n)
A) neurilemma or inductor neuron.
B) interneuron or connector neuron.
C) somatic neuron.
D) deductor neuron.

Question

Quizplus · Accepted Answer

A reflex arc involves a sensory neuron that receives information from a sensory receptor, then sends that information to an interneuron (also known as a connector neuron) in the spinal cord or brainstem. The interneuron then quickly relays the signal to a motor neuron, which controls a muscle or gland, causing an automatic response without involving conscious thought. Therefore, the correct choice is B.

A Reflex Arc Involves a Sensory Neuron, a Motor Neuron