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

Classes of Antibodies

Anatomy & Physiology

21. The Immune System

Classes of Antibodies

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Multiple Choice

Which of the following best describes IgM antibodies?

IgM antibodies are primarily involved in allergic reactions.

IgM antibodies are responsible for long-term immunity.

IgM antibodies are the first antibodies produced in response to an infection.

IgM antibodies are the most abundant antibodies in the bloodstream.

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Verified step by step guidance

Understand the role of IgM antibodies in the immune response. IgM antibodies are part of the body's initial defense against infections.

Recognize that IgM antibodies are the first type of antibody produced by the immune system when it encounters a pathogen.

Differentiate IgM antibodies from other types of antibodies, such as IgG, which are involved in long-term immunity, and IgE, which are associated with allergic reactions.

Note that IgM antibodies are not the most abundant in the bloodstream; IgG antibodies hold that distinction.

Conclude that the primary function of IgM antibodies is to provide an immediate response to infection, marking them as the first responders in the immune system.