Physioex Activity 5 of Exercise 5

Exercise 5: Cardiovascular Dynamics: Activity 5: Studying the Effect of Blood Vessel Radius on Pump Activity Lab Report Pre-lab Quiz Results You scored 80% by answering 4 out of 5 questions correctly. 1. The heart is resting during You correctly answered: c. ventricular diastole. 2. The right side of the heart pumps blood You correctly answered: d. to the lungs. 3. The layer of the blood vessel that is stimulated by the autonomic nervous system is You correctly answered: b. smooth muscle. 4. In the experiment, the pump simulates Your answer : d. the left atrium of the heart. Correct answer: b. the left ventricle of the heart. 5. If the right beaker simulates the flow of blood to the systemic circuit of the body, what do the right valve and flow tube represent? You correctly answered: d. aortic valve and aorta

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Experiment Results Predict Question: Predict Question: If you increase the flow tube radius, what will happen to the pump rate to maintain constant pressure? Your answer : a. The pump rate will increase. Stop & Think Questions: When the piston of the pump reaches its lowest point, the volume remaining in the pump is the You correctly answered: b. end systolic volume. If you increase the right flow tube radius, what will happen to resistance and flow rate? You correctly answered: b. Flow rate will increase and resistance will decrease. If the left flow tube represents the pulmonary veins, what does the left source beaker represent? You correctly answered: d. blood coming from the lungs Experiment Data: Flow (ml/min) 6607.2 9423.9 11882.5 13798.3 15198.7 Rad. L (mm) 3.5 3.5 3.5 3.5 3.5 Rad. R (mm) 3.0 3.5 4.0 4.5 5.0 Str. V (ml) 70 70 70 70 70 Rate (strokes/min) 94.9 134.6 169.8 197.1 217.1 Press. L (mm Hg) 40 40 40 40 40 Press. Dif. R (mm Hg) 40 40 40 40 40

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Post-lab Quiz