| A | B |
|---|
| afterload | amount of resistance to ejection of blood from ventricle |
| apical impulse (maximum impulse (PMI) | impulse palpated at 5th intercostal space, L midclavicular line; caused by L ventricle contraction |
| baroreceptors | nerve fibers in aortic arch and carotid arteries responsible for reflex control of blood pressure |
| cardiac catherization | invasive procedure to measure cardiac chamber pressures and assess patency of coronary arteries |
| cardiac conduction system | specialized heart cells responsible for generating and coordinating transmission or electrical impulses to myocardial cells |
| cardiac output | amt of blood pumped by ea. ventricle in L/min (5 L/m normal adult heart) |
| cardiac stress test | evaluates heart functioning during increased O2 demand |
| contractility | ability of cardiac muscles to shorten in response to electrical impulse |
| depoliarization | electrical activation of cell caused by influx of Na and exit of K |
| diastole | ventricular relaxation resulting in filling |
| ejection fraction | % of end-diastolic blood volume ejected from ventricle w/ea. heartbeat |
| hemodynamic monitoring | monitoring devices to measure cardiovascular function |
| hypertension | blood pressure > 140/90 mm Hg |
| hypotension | decrease in blood pressure < 100/60 mm Hg |
| International Normalized Ration (INR) | method for recording prothrombin levels, eliminating test result variations |
