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 lists the correct order of structures that substances removed from the blood pass through in the urinary system?

Glomerulus → Proximal convoluted tubule → Bowman's capsule → Loop of Henle → Distal convoluted tubule → Collecting duct

Glomerulus → Bowman's capsule → Proximal convoluted tubule → Loop of Henle → Distal convoluted tubule → Collecting duct

Bowman's capsule → Glomerulus → Loop of Henle → Proximal convoluted tubule → Collecting duct → Distal convoluted tubule

Proximal convoluted tubule → Glomerulus → Bowman's capsule → Loop of Henle → Collecting duct → Distal convoluted tubule

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Verified step by step guidance

Understand the function of each structure in the nephron and urinary system. The nephron is the functional unit of the kidney, and substances removed from the blood follow a specific pathway through its structures.

Start with the glomerulus, which is a network of capillaries where blood is filtered. Substances like water, ions, and small molecules are filtered out of the blood here.

Next, the filtered substances enter Bowman's capsule, which surrounds the glomerulus and collects the filtrate. This is the first structure in the nephron that receives the filtered substances.

From Bowman's capsule, the filtrate moves into the proximal convoluted tubule. This is where reabsorption of water, ions, and nutrients occurs, as well as secretion of certain substances into the filtrate.

The filtrate then travels through the Loop of Henle, which has descending and ascending limbs. This structure is responsible for concentrating the urine by reabsorbing water and salts. After the Loop of Henle, the filtrate moves to the distal convoluted tubule and finally into the collecting duct, where further adjustments to the filtrate composition occur before it exits the nephron.