Which of the following correctly describes the order of events that occur when you touch a very hot surface?
1) Action potential in sensory neuron
2) Sensory receptor absorbs energy from stimulus
3) Receptor potential produced
4) Stimulus is transduced into electrical energy

A) 1 → 3 → 4 → 2
B) 2 → 1 → 4 → 3
C) 2 → 4 → 3 → 1
D) 4 → 1 → 3 → 2
E) 3 → 1 → 4 → 2

Receptor Potential

The change in membrane potential by a sensory receptor in response to a stimulus.

Action Potential

This is a temporary reversal of electrical polarization of the membrane in neurons and muscle cells, allowing for the transmission of signals.

Stimulus Transduced

The conversion of a stimulus from the environment into a form that can be processed by the nervous system.