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

How is water in the filtrate reabsorbed into the blood during the process of glomerular filtration?

Through active transport in the proximal convoluted tubule

Through bulk flow in the collecting duct

Via facilitated diffusion in the distal convoluted tubule

By osmosis in the proximal convoluted tubule

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Verified step by step guidance

Understand that glomerular filtration is the first step in the process of urine formation, where blood is filtered in the glomerulus to form filtrate.

Recognize that the proximal convoluted tubule (PCT) is the first segment of the renal tubule where reabsorption of water and solutes occurs.

Identify that water reabsorption in the PCT occurs primarily through osmosis, a passive transport mechanism where water moves from an area of lower solute concentration to an area of higher solute concentration.

Note that the reabsorption of solutes like sodium and glucose in the PCT creates an osmotic gradient, which drives the movement of water from the filtrate back into the blood.

Conclude that the correct mechanism for water reabsorption in the PCT during glomerular filtration is osmosis, facilitated by the osmotic gradient created by solute reabsorption.