Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. 1. 1 Which of the following variables directly contributes to preload? You correctly answered: venous return. 2. 2 Which of the following would not increase end diastolic volume? You correctly answered: dehydration. 3. 3 Increased contractility of the heart results in all but which of the following? You correctly answered: increased end systolic volume. 4. 4 Which of the following does not affect stroke volume? You correctly answered: All of these affect stroke volume. 5. 5 Which of the following is not equivalent to the others? You correctly answered: end diastolic volume. Experiment Results Predict Question 1 Predict Question: If the pump rate is analogous to the heart rate, what do you think will happen to the rate when you increase the stroke volume? Your answer: The pump rate will increase to maintain cardiac output. Stop & Think Questions 1 Why did changing the ending pump volume (ESV) automatically change the stroke volume?
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- Spring '14