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

21. The Immune System

Introduction to Inflammation

Anatomy & Physiology

21. The Immune System

Introduction to Inflammation

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Multiple Choice

Which of the following inflammatory chemicals is released by mast cells?

Histamine

Prostaglandins

Bradykinin

Cytokines

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Verified step by step guidance

Understand the role of mast cells in the immune system. Mast cells are a type of white blood cell that play a crucial role in the body's response to allergens and pathogens by releasing various chemicals.

Identify the chemicals typically released by mast cells. Mast cells are known for releasing histamine, which is a key mediator in allergic reactions and inflammation.

Differentiate between the chemicals listed in the problem: Histamine, Prostaglandins, Bradykinin, and Cytokines. Each of these chemicals has distinct roles in the inflammatory process.

Focus on histamine, which is specifically released by mast cells. Histamine causes dilation of blood vessels and increases the permeability of capillaries, leading to the classic symptoms of inflammation such as redness and swelling.

Conclude that among the options provided, histamine is the inflammatory chemical released by mast cells, making it the correct answer to the problem.