BioBeyond: Unit 8 Cardio Lab: A CHANGE OF HEART (2022/2023) Rated A+

BioBeyond: Unit 8 Cardio Lab: A CHANGE OF HEART (2022/2023) Rated A+ 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 In the case of astronauts, less blood fills the heart's left ventricle. Make an inference about how you think the heart will respond. The heart will not have to contract as hard. Heart muscles will atrophy (decrease in mass) as a result Use the evidence shown to explain how a reduction in the volume of blood filling the ventricles could impact the structure of the ventricles. There is a decrease in the mass of astronauts' left ventricle . Predict how changes to the left ventricle might affect the body's ability to supply cells with oxygen and nutrients. top to bottom Down red arrow for all What type of person may also experience cardiovascular deconditioning? Select only one. 3rd picture down (woman laying in hospital bed) Choose which one will be most effective in preventing the loss of cardiac tissue. Working Out Take a look at the following exercise devices. Select whichever one you think may be useful in maintaining heart health. 1st Picture (stationary bicycle) Based on the astronaut's exercise routine shown, what, if any, changes would you make to their exercise routine? Increase cardiovascular exercise on all days except Saturday Summarize to your crew how their heart changes while in space and what they can do to help prevent such a change. Your response should be over 120 characters. One thing that I would do to prevent a reduction in the exercise capacity of my crew is increase cardiovascular exercise with the use of a stationary bicycle. Making sure your crew members carry out cardiovascular exercise when in space is critical for maintaining their blood volume and cardiovascular health.