PhysioEx Exercise 6 Activity 3.pdf - PhysioEx Exercise 6 Activity 3 PhysioEx Lab Report Exercise 6 Cardiovascular Physiology Activity 3 Examining the

PhysioEx Exercise 6 Activity 3.pdf - PhysioEx Exercise 6...

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Unformatted text preview: 4/15/2020 PhysioEx Exercise 6 Activity 3 PhysioEx Lab Report Exercise 6: Cardiovascular Physiology Activity 3: Examining the Effect of Temperature on Heart Rate Name: Courtney Paulsen Date: 15 April 2020 Session ID: session-2a2c23a7-96cc-05c6-e5e6-a4f51692e7ce Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1 Organisms that usually maintain the same internal body temperature in spite of environmental temperature changes are You correctly answered: homeothermic. 2 The general name for the process that maintains the internal body temperature in humans is You correctly answered: homeostasis. 3 The electrolytes in a Ringer's solution are required to You correctly answered: provide for autorhythmicity. 4 An internal body temperature that is above the normal range is You correctly answered: hyperthermic. Experiment Results Predict Questions 1 Predict Question 1: What effect will decreasing the temperature of the Ringer's solution have on the heart rate of the frog? Your answer: decrease in heart rate. 2 Predict Question 2: What effect will increasing the temperature of the Ringer's solution have on the heart rate of the frog? Your answer: increase in heart rate. Stop & Think Question 1 What effect do you think a fever of 104°F would have on heart rate? 1/3 4/15/2020 PhysioEx Exercise 6 Activity 3 You correctly answered: increase in heart rate. Experiment Data Solution Heart Rate (beats/min) 23°C Ringer's 62 5°C Ringer's 51 32°C Ringer's 72 23°C Ringer's 5°C Ringer's 32°C Ringer's Post-lab Quiz Results 2/3 4/15/2020 PhysioEx Exercise 6 Activity 3 You scored 100% by answering 4 out of 4 questions correctly. 1 In the 5°C Ringer’s solution, the frog heart You correctly answered: beat slower than baseline. 2 In the 32°C Ringer’s solution, the frog heart You correctly answered: beat faster than baseline. 3 If the human heart were experiencing hypothermia, what do you think would be the effect on heart rate? You correctly answered: A decrease in heart rate. 4 Without the Ringer's solution You correctly answered: spontaneous cardiac action potentials would not occur. Review Sheet Results 1 Explain the effect that decreasing the temperature had on the frog heart. How do you think the human heart would respond? How well did the results compare with your prediction? Your answer: My prediction was right, the heart rate of the frog decreased as the temperature was decreased. I think a human heart would also respond in a similar way to the frog. 2 Describe why Ringer's solution is required to maintain heart contractions. Your answer: Since Ringer's solution contains ions and electrolytes. When a heart is taken out of the body and is put into the solution, it will continue to beat until it runs out of energy to allow action potentials to continue occurring. 3 Explain the effect that increasing the temperature had on the frog heart. How do you think the human heart would respond? How well did the results compare with your prediction? Your answer: My prediction was right that when the temperature increased, the frog's heart rate increased as well. I believe that a human heart would have a similar effect to the frogs. 3/3 ...
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  • Spring '20
  • Physiology, session ID, session-2a2c23a7

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