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

Which factor would increase the glomerular filtration rate?

Constriction of the afferent arteriole

Decreased permeability of the glomerular membrane

Increased plasma protein concentration

Increased blood pressure in the glomerular capillaries

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Verified step by step guidance

Understand the concept of glomerular filtration rate (GFR), which is the rate at which the kidneys filter blood, removing waste and excess substances.

Recognize that GFR is influenced by several factors, including blood pressure in the glomerular capillaries, permeability of the glomerular membrane, and plasma protein concentration.

Consider how blood pressure affects GFR: Increased blood pressure in the glomerular capillaries generally leads to an increase in GFR because it forces more fluid through the filtration membrane.

Analyze the effect of afferent arteriole constriction: Constriction reduces blood flow into the glomerulus, decreasing pressure and thus reducing GFR.

Evaluate the impact of plasma protein concentration: Increased plasma protein concentration raises the osmotic pressure, which can decrease GFR by pulling water back into the capillaries, opposing filtration.