HBIO 205 FINAL Exam Guide |Questions with Complete Solutions
cardiac output (Q) - volume of blood ejected by each ventricle per minute Q (L/min) = HR (b/min) x SV (L/b) Q = HR x SV heart rate (HR) - number of times ventricles contract per minute blood pressure - -pressure = flow x resistance -flow corresponds to Q, resistance corresponds to viscosity and diameter of blood vessels -highest when standing and lowest when laying down -at rest - systolic = 90-145 mmHG, diastolic = 40-85 mmHg (120/80 is norm, 90/50 is okay) -exercise - systolic increases, anything above 250 is too much, diastolic stays the same or decreases
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