What is Reflex Arc? Draw neat diagram of the components in a reflex arc. Why do impulses flow only only in one direction in a reflex arc?
The pathway followed by nerve impulses to transmit the message to the receptors and then carry it back to the effector muscle cells in response to a stimuli is called reflex arc.
Nerve impulses travel in one direction only because nerve cells only have neurotransmitter storage vesicles going one way and receptors in one place .