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

Introduction to the Urinary System

Anatomy & Physiology

25. The Urinary System

Introduction to the Urinary System

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Multiple Choice

The chief force pushing water and solutes out of the blood across the filtration membrane in the glomerulus is:

Blood colloid osmotic pressure

Renal arterial pressure

Capsular hydrostatic pressure

Glomerular hydrostatic pressure

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Verified step by step guidance

Understand the concept of glomerular filtration: The glomerulus is a network of capillaries in the kidney where filtration occurs. The filtration membrane allows water and solutes to pass from the blood into the renal tubule, forming filtrate.

Identify the forces involved in glomerular filtration: There are three main pressures that influence filtration: glomerular hydrostatic pressure (GHP), blood colloid osmotic pressure (BCOP), and capsular hydrostatic pressure (CHP).

Define glomerular hydrostatic pressure (GHP): This is the pressure exerted by the blood within the glomerular capillaries. It is the chief force driving water and solutes out of the blood and across the filtration membrane into the Bowman's capsule.

Contrast GHP with other pressures: Blood colloid osmotic pressure (BCOP) opposes filtration by pulling water back into the capillaries due to plasma proteins, while capsular hydrostatic pressure (CHP) opposes filtration by exerting pressure from the fluid already in the Bowman's capsule.

Conclude that glomerular hydrostatic pressure is the dominant force: Since GHP is the primary pressure pushing water and solutes out of the blood, it is the chief force responsible for filtration in the glomerulus.