1. The problem statement, all variables and given/known data Not sure if this is a homework question but figured this is the best place to put it. When I touch something, how is the stimulus turned into an action potential? how does the body convert the energy of the stimulus into energy that can be used to modify an electrochemical gradient? 2. Relevant equations 3. The attempt at a solution I know between neurons it is via a neutrotransmitter but how does it start?