1.If the vagus nerve to the SA node was severed, heart rate would approximately be:
a. 100-110 bpm
b. 20-40 bpm
c. 40-60 bpm
d. 70-80 bpm
2.Which of the following is the term for the speed of action potentials conducted throughout the cardiac conduction system:
a. inotropy
b. chronotropy
c. dromotropy
d. lusitropy