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: Overview

Anatomy & Physiology

25. The Urinary System

Renal Physiology: Overview

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Multiple Choice

Which part of the nephron is most directly involved in the filtration of blood?

Collecting duct

Glomerulus

Proximal convoluted tubule

Loop of Henle

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Verified step by step guidance

Understand the structure and function of the nephron: The nephron is the functional unit of the kidney responsible for filtering blood and forming urine. It consists of several parts, including the glomerulus, proximal convoluted tubule, loop of Henle, distal convoluted tubule, and collecting duct.

Focus on the filtration process: Filtration occurs when blood plasma and small solutes pass from the bloodstream into the nephron. This process happens in the renal corpuscle, which includes the glomerulus and Bowman's capsule.

Identify the role of the glomerulus: The glomerulus is a network of capillaries where blood pressure forces water, ions, and small molecules out of the blood and into Bowman's capsule. This is the first step in urine formation and is directly involved in filtration.

Clarify the roles of other nephron parts: The proximal convoluted tubule, loop of Henle, and collecting duct are involved in reabsorption, secretion, and concentration of urine, but they are not directly responsible for the initial filtration of blood.

Conclude that the glomerulus is the correct answer: Based on its function in filtering blood, the glomerulus is the part of the nephron most directly involved in filtration.