aime_nathan_SCI132_Week6-Exercise6 - Exercise 6:...

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Exercise 6: Cardiovascular Physiology Worksheet Assignment Due: Week 6 Student instructions : Follow the step-by-step instructions for this exercise found in your text and record your answers in the spaces below. Submit this completed document by the assignment due date found in the Syllabus. Please make sure that your answers are typed in RED . Please type your Name and Student ID Number here: Nathan Aime 4134653 Electrical Stimulation Activity 1: Direct Heart Stimulation 1. Did you see any change in the trace? No 2. Why or why not? Cardiac muscle is incapable of reacting to stimulus before the middle of phase 3. 3. Did you see any change in the trace? No. 4. Why or why not? It will not respond to a normal cardiac stimulus before phase 4. 5. Describe the change you see in the trace. How does it differ from the baseline trace? There is a normal systole followed by an extra systole and then a compensatory pause. 6. What effect do the repeated stimuli have on the heartbeat trace? Describe the trace. It increases heart rate. A couple ventricle peaks followed by flat line then resumes normal beat. 7.
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This note was uploaded on 01/08/2012 for the course BUSN 310 taught by Professor Alex during the Spring '11 term at American Public University.

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aime_nathan_SCI132_Week6-Exercise6 - Exercise 6:...

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