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 functional filtration unit in a kidney is the ______.

glomerulus

renal pelvis

ureter

nephron

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Verified step by step guidance

Step 1: Begin by understanding the structure and function of the kidney. The kidney is responsible for filtering blood, removing waste products, and regulating fluid and electrolyte balance.

Step 2: Learn about the nephron, which is the functional filtration unit of the kidney. Each kidney contains millions of nephrons, and they are responsible for filtering blood and forming urine.

Step 3: Break down the nephron's structure. It consists of the glomerulus (a network of capillaries), Bowman’s capsule, proximal tubule, loop of Henle, distal tubule, and collecting duct. Each part plays a role in filtration, reabsorption, and secretion.

Step 4: Compare the nephron to other kidney structures mentioned in the problem. The renal pelvis is a funnel-shaped structure that collects urine, and the ureter is a tube that transports urine to the bladder. Neither of these structures is involved in filtration.

Step 5: Conclude that the nephron is the correct answer because it is the primary unit responsible for filtering blood and forming urine, while the other options serve different functions in the urinary system.