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

Renal Physiology: Overview

Anatomy & Physiology

25. The Urinary System

Renal Physiology: Overview

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Multiple Choice

What are the two primary mechanisms by which the kidneys help maintain blood pH?

Secretion of bicarbonate and reabsorption of hydrogen ions

Reabsorption of sodium and secretion of potassium

Secretion of sodium and reabsorption of potassium

Reabsorption of bicarbonate and secretion of hydrogen ions

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Understand that the kidneys play a crucial role in maintaining the acid-base balance in the body, which is essential for normal cellular functions.

Recognize that the kidneys help regulate blood pH by managing the levels of bicarbonate (HCO₃⁻) and hydrogen ions (H⁺) in the blood.

Identify that reabsorption of bicarbonate ions (HCO₃⁻) from the renal tubules back into the blood helps to neutralize excess acids, thus increasing blood pH.

Understand that secretion of hydrogen ions (H⁺) into the renal tubules for excretion in urine helps to remove excess acidity from the blood, thus maintaining a stable pH.

Conclude that the two primary mechanisms by which the kidneys maintain blood pH are the reabsorption of bicarbonate ions and the secretion of hydrogen ions.