Learn about Cardiovascular Physiology by completing the following lab simulation.
Objectives:
- To list the properties of cardiac muscle as automaticity and rhythmicity and define each.
- To explain the statement, "Cardiac muscle has an intrinsic ability to beat."
- To compare the relative length of the refractory period of cardiac muscle with that of skeletal muscle, and explain why it is not possible to tetanize cardiac muscle.
- To define extrasystole and to explain at what point the in the cardiac cycle (and on an ECG tracing) an extrasystole can be induced.
- To describe the effect of the following on the heart rate: cold, heat, vagal stimulation, pilocarpine, digitalis, atropine, epinephrine, and potassium, sodium, and calcium ions.
