You reach for a pot on the stove, but it is much too hot causing your hand to quickly withdraw from the handle. Explain how information traveled from your hand to your spinal cord by describing the steps involved in
generating and transmitting an action potential, and the steps involved in neuronal communication following the
action potential.

(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?