What is the role of the sensory neuron in a reflex arc?

The role of the sensory neuron in a reflex arc is to carry the sensory information from the receptor to the central nervous system (CNS).

A reflex arc is a neural pathway that mediates a reflex action. It involves several components, including a receptor, a sensory neuron, an integrating center, a motor neuron, and an effector. When a receptor detects a stimulus, it generates a sensory signal that is transmitted by the sensory neuron to the CNS.