QUESTIONS 1. What happens to the heart rate during hyperventilation? 2. 2. What happens to the heart rate during hypoventilation? 3. 3. List several factors that you think may have caused the test subject's heart rate to change in each of the trials. 4. What happens to the oxygen levels in your lungs during hyperventilation? Carbon dioxide levels? 5. In what way would the change in heart rate that corresponds with holding your breath be advantageous in other types of organisms? What organisms might commonly exhibit such an adaptation?
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During hyperventilation, the heart rate usually increases. This is because hyperventilation leads to a decrease in the level of carbon dioxide in the blood. The body responds to this by increasing the heart rate to try and return the carbon dioxide levels to Show more…
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ANSWER THE FOLLOWING QUESTIONS: 1. Central chemoreceptors are located in the __________ and they detect changes in __________ and __________. Of these, the concentration of __________ is the most closely monitored. Respiration is increased when the levels of __________ become too high. 2. Peripheral chemoreceptors are located in the __________ and __________ where they monitor blood __________, __________ and __________ concentrations. When arterial O2 concentration falls below __________ mmHg, higher respiration will be triggered. 3. What happens to arterial PCO2 and PO2 during the breath hold? 4. Which factor (O2 or CO2) has a stronger effect on BH time? (Hint: central chemoreceptors detect changes in what?) 5. Define the following terms: - Hyperventilation: - Hypoventilation: - Hypercapnia: - Hypoxia:
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