BioBeyond: Unit 8 Cardio Lab: Q & A’s

To learn more about how your body manages physically demanding tasks, select a physical activity that you would most likely find yourself doing. - Walking to work or school Now imagine you are knee-deep in that activity. You have exerted yourself for almost an hour. How would this make you feel? - All Predict what you think is going on inside your body during vigorous exercise? (Select all that apply) - All But how does blood rich in oxygen and glucose reach the muscle cells that need them? - Systemic Circulation Place the dot on the correct location. - Left ventricle Based on the evidence on the right, do you think there is a relationship between cardiac output and intense physical activity? - Yes, as physical activity gets more intense, cardiac output increases How would a decrease in cardiac output affect one's exercise capacity? - Oxygen delivery would decrease and the ability to do rigorous exercise would decline If both are full of water, which will have a greater output (ie. deliever more water) upon bursting? - 1st picture Why do you believe the balloon on the left will have a greater output? - The balloon on the left is larger and can hold more water What do you notice about the maximum amount of blood filling the left ventricle of astronauts' hearts after 12 weeks of spaceflight? - The maximum volume of blood filling the heart's ventricles is lower after 12 weeks in space Does the evidence in the graph shown (right) support the idea that blood volume decreases in microgravity? - Yes