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

The Nephron

Anatomy & Physiology

25. The Urinary System

The Nephron

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Multiple Choice

Which of these is the functional unit of a kidney?

Nephron

Glomerulus

Collecting duct

Loop of Henle

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Verified step by step guidance

Begin by understanding the structure of the kidney. The kidney is composed of many microscopic units that perform the essential functions of filtering blood and forming urine.

Identify the term 'functional unit'. In anatomy, a functional unit refers to the smallest structure that can perform all the functions of an organ independently.

Examine the options provided: Nephron, Glomerulus, Collecting duct, and Loop of Henle. Each of these is a component of the kidney's structure.

Understand the role of each component: The nephron is the complete structure that includes the glomerulus, proximal tubule, loop of Henle, distal tubule, and collecting duct. It is responsible for filtering blood, reabsorbing necessary substances, and excreting waste as urine.

Conclude that the nephron is the functional unit of the kidney, as it encompasses all necessary parts to perform the kidney's functions independently.