Table of contents

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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 Heart2h 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

First-Line Defenses: Chemical Barriers

Anatomy & Physiology

21. The Immune System

First-Line Defenses: Chemical Barriers

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Multiple Choice

When a localized area exhibits increased capillary filtration, hyperemia, and swelling, it is an indication that __________.

inflammation is occurring

fever is developing

antigens are present

an immune response is underway

antibodies are phagocytizing target cells

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Verified step by step guidance

Understand the symptoms described: increased capillary filtration, hyperemia (increased blood flow), and swelling. These are classic signs of inflammation.

Recognize that inflammation is a localized protective response to injury or infection, characterized by redness, heat, swelling, and pain.

Consider the role of inflammation in the immune response. It helps to isolate the affected area and prevent the spread of pathogens.

Differentiate between inflammation and other immune responses such as fever, which is a systemic response, or the presence of antigens, which may not always cause inflammation.

Conclude that the described symptoms are most directly associated with inflammation, as they align with the physiological processes involved in this response.