CV Physiology (Frog) Simulation Graphs A) Electrical Stimulation Graphs CV Phys Sim #1 - Cardiac Muscle (2 graphs) 1) baseline - normal frog heart rate 2 phases: 1. atrial 2. ventricular Normal HR 2) extrasystole - refractory period for frogs 5 phases: 1. atrial 2. ventricular 3. extra-systole 4. pause 5. vagal escape Question: compared to the baseline, what happened to the heart rate? Did it become: (slower, the same, faster)