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 the Immune System

Anatomy & Physiology

21. The Immune System

Introduction to the Immune System

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Multiple Choice

Factors that work generically against any foreign substance entering the host are described as:

Innate immunity.

Specific immunity.

Irregular immunity.

Immune metabolism.

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Verified step by step guidance

Understand the concept of immunity: Immunity refers to the body's ability to resist or eliminate potentially harmful foreign materials or abnormal cells.

Differentiate between types of immunity: Innate immunity is the body's first line of defense and acts against any foreign substance in a non-specific manner, while specific immunity (adaptive immunity) targets specific pathogens.

Identify the characteristics of innate immunity: Innate immunity includes physical barriers like skin, chemical barriers like stomach acid, and cells like phagocytes that act quickly and generally against pathogens.

Consider the options provided: Evaluate each option based on your understanding of immunity. Innate immunity is non-specific, specific immunity targets specific pathogens, irregular immunity is not a recognized term, and immune metabolism is not directly related to the concept of immunity.

Conclude which type of immunity acts generically against any foreign substance: Based on the characteristics of innate immunity, it is the correct answer as it provides a general defense against pathogens.