brief interval of rising ventricular tension, during which the heart volume and muscle fiber length remain unchanged ("wringing out" of blood in ventricles)
formula for blood pressure
BLOOD PRESSURE = CARDIAC OUTPUT X TOTAL PERIPHERAL RESISTANCE
auscultation method
a way to measure systolic and diastolic BP
mean arterial pressure (MAP)
average BP values; MAP = DIASTOLIC BP + [.333(SYSTOLIC - DIASTOLIC BP)]
precapillary sphincter
ring of smooth muscle that encircles the vessel at its origin; controls capillary diameter
capacitance vessels
the veins: they serve as blood reservoirs (normally contain 65% of the total blood volume at rest)
phlebitis
condition in which the venous wall becomes inflamed and progressively deteriorates
thrombus
blood clot
rate-pressure product (RPP)
index of relative cardiac work that relates closely to directly measured myocardial oxygen consumption and coronary blood flow in healthy subjects over a wide range of exercise intensities; RPP = Systolic BP X Heart Rate
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