150 Review Sheet 9 ACTIVITY 6 The Effect of Hormones on Urine Formation 1. How did the addition of aldosterone affect urine volume (compared with baseline)? Can the reabsorption of solutes influence water reabsorption in the nephron? Explain. How well did the results compare with your prediction? 2. How did the addition of ADH affect urine volume (compared with baseline)? How well did the results compare with your prediction? Why did the addition of ADH also affect the concentration of potassium in the urine (compared with baseline)? 3. What is the principal determinant for the release of aldosterone from the adrenal cortex? 4. How did the addition of both aldosterone and ADH affect urine volume (compared with baseline)? How well did the results compare with your prediction? 5. What is the principal determinant for the release of ADH from the posterior pituitary gland? Does ADH favor the formation of dilute or concentrated urine? Explain why. 6. Which hormone (aldosterone or ADH) has the greater effect on urine volume? Why? 7. If ADH is not available, can the urine concentration still vary? Explain your answer. 8. Consider this situation: you want to reabsorb sodium ions but you do not want to increase the volume of the blood by reabsorbing large amounts of water from the filtrate. Assuming that aldosterone and ADH are both present, how would you adjust the hormones to accomplish the task?
150 Review Sheet 9 ACTIVITY 6 The Effect of Hormones on Urine Formation 1. How did the addition of aldosterone affect urine volume (compared with baseline)? Can the reabsorption of solutes influence water reabsorption in the nephron? Explain. How well did the results compare with your prediction? 2. How did the addition of ADH affect urine volume (compared with baseline)? How well did the results compare with your prediction? Why did the addition of ADH also affect the concentration of potassium in the urine (compared with baseline)? 3. What is the principal determinant for the release of aldosterone from the adrenal cortex? 4. How did the addition of both aldosterone and ADH affect urine volume (compared with baseline)? How well did the results compare with your prediction? 5. What is the principal determinant for the release of ADH from the posterior pituitary gland? Does ADH favor the formation of dilute or concentrated urine? Explain why. 6. Which hormone (aldosterone or ADH) has the greater effect on urine volume? Why? 7. If ADH is not available, can the urine concentration still vary? Explain your answer. 8. Consider this situation: you want to reabsorb sodium ions but you do not want to increase the volume of the blood by reabsorbing large amounts of water from the filtrate. Assuming that aldosterone and ADH are both present, how would you adjust the hormones to accomplish the task?
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Activitie 6
Transcribed Image Text:150
Review Sheet 9
ACTIVITY 6 The Effect of Hormones on Urine Formation
1. How did the addition of aldosterone affect urine volume (compared with baseline)? Can the reabsorption of solutes influence
water reabsorption in the nephron? Explain. How well did the results compare with your prediction?
2. How did the addition of ADH affect urine volume (compared with baseline)? How well did the results compare with your
prediction? Why did the addition of ADH also affect the concentration of potassium in the urine (compared with baseline)?
3. What is the principal determinant for the release of aldosterone from the adrenal cortex?
4. How did the addition of both aldosterone and ADH affect urine volume (compared with baseline)? How well did the results
compare with your prediction?
5. What is the principal determinant for the release of ADH from the posterior pituitary gland? Does ADH favor the formation
of dilute or concentrated urine? Explain why.
6. Which hormone (aldosterone or ADH) has the greater effect on urine volume? Why?
7. If ADH is not available, can the urine concentration still vary? Explain your answer.
8. Consider this situation: you want to reabsorb sodium ions but you do not want to increase the volume of the blood by reabsorbing
large amounts of water from the filtrate. Assuming that aldosterone and ADH are both present, how would you adjust
the hormones to accomplish the task?
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