Table of contents

Skip topic navigation

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

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

What is the most abundant nitrogenous waste that the kidneys remove from the blood?

Uric acid

Urea

Ammonia

Creatinine

Previous problemNext problem

Verified step by step guidance

Understand the role of the kidneys in the excretory system: The kidneys filter blood to remove waste products and excess substances, maintaining homeostasis.

Identify the types of nitrogenous waste: Nitrogenous wastes include urea, uric acid, ammonia, and creatinine, all of which are byproducts of protein metabolism.

Recognize the most abundant nitrogenous waste: Urea is the primary nitrogenous waste product in humans, formed in the liver from ammonia and excreted by the kidneys.

Compare the waste products: Urea is more abundant than uric acid, ammonia, and creatinine in the blood, making it the main waste product removed by the kidneys.

Conclude with the correct answer: Based on the understanding of kidney function and nitrogenous waste, urea is the most abundant waste removed from the blood by the kidneys.