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 structure is the functional unit of the kidney responsible for filtering blood and forming urine?

Ureter

Glomerulus

Nephron

Renal pelvis

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Verified step by step guidance

Step 1: Understand the role of the kidney in the body. The kidney is responsible for filtering blood, removing waste products, and regulating water and electrolyte balance. To achieve this, it relies on its functional units.

Step 2: Learn the definition of a nephron. The nephron is the microscopic structural and functional unit of the kidney. It is responsible for filtering blood and forming urine through processes such as filtration, reabsorption, secretion, and excretion.

Step 3: Break down the nephron's structure. The nephron consists of several key components: the glomerulus (a network of capillaries where filtration occurs), Bowman's capsule (surrounds the glomerulus and collects the filtrate), the proximal tubule, loop of Henle, distal tubule, and collecting duct.

Step 4: Compare the nephron to other structures listed in the problem. The ureter is a tube that transports urine from the kidney to the bladder, the glomerulus is part of the nephron but not the entire functional unit, and the renal pelvis is a funnel-shaped structure that collects urine and channels it to the ureter.

Step 5: Conclude that the nephron is the correct answer because it is the complete functional unit responsible for filtering blood and forming urine, integrating all necessary processes within its structure.