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 substances does the urinary system primarily excrete to eliminate waste from the body?

Urea and creatinine

Glucose and amino acids

Bile and bilirubin

Carbon dioxide and oxygen

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Verified step by step guidance

Understand the primary function of the urinary system, which is to filter blood and remove waste products from the body.

Identify the main waste products that are excreted by the urinary system. These are typically nitrogenous wastes resulting from protein metabolism.

Recognize that urea is a major nitrogenous waste product formed in the liver from ammonia, which is then transported to the kidneys for excretion.

Understand that creatinine is another waste product, formed from the breakdown of creatine phosphate in muscle, and is excreted by the kidneys.

Note that glucose and amino acids are typically reabsorbed by the kidneys and not excreted as waste, while bile and bilirubin are processed by the liver and excreted via the digestive system, and carbon dioxide is expelled by the respiratory system.