Table of contents

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1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

25. The Urinary System

The Nephron

Anatomy & Physiology

25. The Urinary System

The Nephron

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Multiple Choice

Which of the following statements best describes the actions of the hormone ADH on the nephron?

ADH increases the permeability of the collecting duct to water, leading to more concentrated urine.

ADH enhances the filtration rate in the glomerulus.

ADH decreases the reabsorption of sodium in the proximal convoluted tubule.

ADH stimulates the secretion of potassium in the distal convoluted tubule.

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Verified step by step guidance

Identify the primary function of the hormone ADH (Antidiuretic Hormone), which is to regulate water balance in the body by acting on the kidneys.

Understand that ADH primarily targets the collecting ducts of the nephron, which is the functional unit of the kidney.

Recognize that ADH increases the permeability of the collecting duct walls to water by promoting the insertion of water channels called aquaporins.

Realize that increased water reabsorption in the collecting ducts leads to more concentrated urine, as water is reabsorbed back into the bloodstream.

Conclude that the statement 'ADH increases the permeability of the collecting duct to water, leading to more concentrated urine' best describes the action of ADH on the nephron.