PEX-06-05 - Exercise 6 Cardiovascular Physiology Activity 5 Examining the Effects of Various Ions on Heart Rate Lab Report Pre-lab Quiz Results You

PEX-06-05 - Exercise 6 Cardiovascular Physiology Activity 5...

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Exercise 6: Cardiovascular Physiology: Activity 5: Examining the Effects of Various Ions on Heart Rate Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. Which organelle in the cardiac muscle cell stores calcium? 2. Verapamil is a calcium-channel blocker. Its effects could be described as 3. When the cardiac muscle cell is at rest, where is most of the potassium found? 4. Resting cardiac muscle cells are most permeable to 01/03/13 page 1
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01/03/13 page 2 Experiment Results Predict Question: Predict Question 1: Because calcium-channel blockers are negative chronotropic and negative inotropic, what effect do you think increasing the concentration of calcium will have on heart rate?
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