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

Which of the following substances is least likely to be found in glomerular filtrate?

Albumin

Urea

Sodium ions

Glucose

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Verified step by step guidance

Understand the function of the glomerulus: The glomerulus is a network of capillaries in the kidney that filters blood to form glomerular filtrate. This filtrate contains substances small enough to pass through the filtration barrier, while larger molecules are retained in the blood.

Review the composition of glomerular filtrate: Glomerular filtrate typically includes water, electrolytes (e.g., sodium ions), glucose, and waste products like urea. Large proteins, such as albumin, are generally too large to pass through the filtration barrier under normal conditions.

Consider the size and properties of the substances listed: Albumin is a large protein molecule, while urea, sodium ions, and glucose are smaller molecules that can pass through the filtration barrier.

Relate the filtration process to the question: Since albumin is a large molecule, it is least likely to be found in glomerular filtrate under normal conditions. The other substances listed (urea, sodium ions, and glucose) are small enough to pass through the filtration barrier and are commonly found in the filtrate.

Conclude the reasoning: Based on the size and filtration properties of the substances, albumin is the least likely to be found in glomerular filtrate, as it is typically retained in the bloodstream unless there is damage to the filtration barrier.