lab_4 - Lab 4: Human Cardiovascular System The heart acts...

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Lab 4: Human Cardiovascular System The heart acts as a pump in the vascular system that pumps blood through the systemic and pulmonary circulations. The blood vessels act as conduits through which blood is transported or thin-walled membranes through which nutrients and oxygen are exchanged with active tissue. Blood pressure is a function of volume and capacitance. Directly proportional to volume, inversely proportional to capacitance. Arteries are thick walled low capacitance. Veins are capacitance vessels Pr = f(vol, capacitance) Pr α volume/capacitance MAP is the timed average between systolic (when blood fills arteries from heart) and diastolic (when blood empties from arteries) blood pressures. Heart spends two thirds of the time in diastole. Average values: Systolic 120 mmHg Diastolic 80mmHg MAP = CO * TPR { Pressure = Flow * Resistance} CO = SV * HR { CO units L/min, SV units L/beat, HR unit beats/min Blood pressure is measured with a sphygmomanometer. Arm is occluded and pressure is
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This note was uploaded on 06/07/2009 for the course NPB 101L taught by Professor Goldberg during the Spring '08 term at UC Davis.

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lab_4 - Lab 4: Human Cardiovascular System The heart acts...

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