Save guides, add subjects and pick up where you left off with your BBC account. A reflex action follows this general sequence and does not involve the conscious part of the brain. This is why the ...

A reflex arc starts off with receptors being excited. They then send signals along a sensory neuron to your spinal cord, where the signals are passed on to a motor neuron.

Reflex actions are therefore essential to the survival of many organisms. A reflex action follows this general sequence and does not involve the conscious part of the brain. This is why the ...