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 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 the Immune System

Anatomy & Physiology

21. The Immune System

Introduction to the Immune System

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Multiple Choice

Which of the following is NOT one of the links in the chain of infection?

Reservoir

Mode of Transmission

Portal of Exit

Antibody Production

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Understand the concept of the 'chain of infection', which is a model used to understand the infection process. It consists of several links that must be present for an infection to occur.

Identify the links in the chain of infection: 1) Infectious Agent, 2) Reservoir, 3) Portal of Exit, 4) Mode of Transmission, 5) Portal of Entry, and 6) Susceptible Host.

Review each link: A 'Reservoir' is where the infectious agent lives and multiplies. 'Mode of Transmission' is how the agent is spread. 'Portal of Exit' is the path by which the agent leaves the host.

Recognize that 'Antibody Production' is not a part of the chain of infection. Instead, it is a part of the body's immune response to fight infections.

Conclude that 'Antibody Production' does not fit into the chain of infection model, as it is not a link that facilitates the spread of infection.