1) True ...... Cardiac Muscle Characteristics
2) True
3) Decreased, Decreasing ...... Page 7
4) Outside the cell ...... Page 2 & Cardiac Muscle Characteristics
5) Doesn't Change ...... Effects of Preloading
6) Increases ...... Figure 12
7) Phase 2 ...... Figure 1
8) True ....... Figure 10
9) True ...... Function of Refractory Period.
10) Decreasing ...... Changing Pacemaker Firing
11) Decrease
12) False ...... Cardiac Muscle Characteristics (the heart cannot undergo tetany!)