Table of contents

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

Renal Physiology: Regulation of Glomerular Filtration

Anatomy & Physiology

25. The Urinary System

Renal Physiology: Regulation of Glomerular Filtration

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Multiple Choice

In renal physiology, how and where are hydrogen ions primarily secreted in the nephron?

Hydrogen ions are secreted in the distal convoluted tubule through passive diffusion.

Hydrogen ions are secreted in the loop of Henle through facilitated diffusion.

Hydrogen ions are secreted in the proximal convoluted tubule through active transport.

Hydrogen ions are secreted in the collecting duct through active transport.

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Verified step by step guidance

Understand the role of hydrogen ion secretion in maintaining acid-base balance in the body. The kidneys play a crucial role in this process by secreting hydrogen ions into the urine.

Identify the parts of the nephron involved in hydrogen ion secretion. The nephron consists of several segments: the proximal convoluted tubule, loop of Henle, distal convoluted tubule, and collecting duct.

Recognize the mechanism of hydrogen ion secretion. Active transport is the primary method by which hydrogen ions are secreted into the nephron. This process requires energy, typically in the form of ATP, to move ions against their concentration gradient.

Focus on the collecting duct as the primary site for hydrogen ion secretion through active transport. This segment of the nephron is responsible for fine-tuning the acid-base balance by actively secreting hydrogen ions into the urine.

Consider the physiological importance of this process. By secreting hydrogen ions, the kidneys help regulate blood pH, ensuring that it remains within a narrow range necessary for proper cellular function.