lab_4_discussion

lab_4_discussion - Laboratory Exercise 4 Human...

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Laboratory Exercise # 4 Human Cardiovascular System 1) Draw a basic schematic illustrating the parts of the cardiovascular system, including the systemic circulation, the pulmonary circulation, and the types of vasculature. Systemic: left ventricle to right atrium and pulomonary: right ventricle to left atrium. List some of the roles of the cardiovascular system. Gas exchange and remove metabolites: Explain the general concepts of blood flow, pressure development and resistance. High to low pressure. Veins comes to the heart. Arteries are from heart. Elastic recoil of aorta and heart pumping makes force for blood to travel. 2) Describe the basic concepts of auscultation. Stethoscope listening. What are systolic and diastolic blood pressures? Systolic blood pressure is max arterial pressure reached during ventricular contraction. Diastolic is the minimal arterial pressure during ventricular relaxation. What happens in the cardiovascular system during systole and diastole? Systole flows out and diastole is filling. What is systemic mean arterial pressure (MAP)? Average blood pressure in body = CO x TPR. Draw a homeostatic loop illustrating the response to a) elevated MAP; and b) reduced MAP. You want to HR decreases and lower TPR with elevated MAP as a response..
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