Question

what is reflex arc?​

Answer 1

Mark as BRAINLIEST answer

Answer:

Reflex arc: The nerve pathway involved in a reflex action, including at its simplest a sensory nerve and a motor nerve with a synapse between.

Answer 2

Answer:

When there is a sudden action in our environment and the sudden reaction we give is not ordered by the brain but spinal chord return the sensory nerves to react against the environmental phenomenon ...

Explanation:

A reflex, or reflex action, is an involuntary and nearly instantaneous movement in response to a stimulus. A reflex is made possible by neural pathways called reflex arcs which can act on an impulse before that impulse reaches the brain