BSC 1086C Chapter Notes - Chapter 18: Qrs Complex, Inotrope, Bainbridge Reflex
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Review your knowledge: name the components of the conduction system of the heart, and trace the conduction pathway. Sa node-> av node -> av bundle -> r & l bundle -> purkinje fibers: draw a diagram of a normal electrocardiogram tracing. Name the individual waves and intervals, and indicate what each represents: describe the normal heart sounds, and explain how heart murmurs differ. Heart sounds are not closing sounds of the valves but are caused by turbulent blood flow. It is the malfunction of a heart valve. The heart valve doesn t close completely: describe the timing and events of the cardiac cycle. Cardiac cycle describes all mechanical events associated with blood flow through the heart during one complete heartbeat: define cardiac output. Explain how changes to heart rate and stroke volume affect cardiac output. Cardiac output = calculated by multiplying the heart rate by the stroke volume.
