BIOC63H3 Chapter Notes -Active Transport
Document Summary
Discuss the membrane potential, ion channels and pumps of the heart. Discuss the electrophysiology of cardiac muscle and the origin of the heart beat. After the series of lectures on this topic, the students should be able to. State the differences between slow and fast channels in cardiac muscle, and describe action potentials in cardiac muscle. Explain the importance of the refractory period in cardiac muscle. Explain the various components of the cardiac cycle, including systole, diastole, and heart sounds. Define cardiac output (co) and describe the factors that affect it. Explain the various features of an electrocardiogram (ecg) and the events that those features reflect. Define the term autorhythmicity, and explain how the sinoatrial (sa) node functions as the pacemaker. Describe the differences between sympathetic and parasympathetic stimulation of heart function. 120 mm for an extracellular [k+] of ~ 4 mm. Membrane potential, ion channels and pumps (figure 1)
