The Heart—A Muscle • Activity 22

The Heart—A Muscle • Activity 22. 1. Compare the pressure pump model to what you know about your heart. In what ways do you think the pressure bulb is a good model for your heart? What were the weaknesses of the pressure bulb as a model for the heart? 2. Use Figure 1, on the following page, to find out how much blood your heart pumps per minute based on your height. a. Record the volume of ... ................
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