Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 39m
3. Energy & Cell Processes10h 8m
4. Tissues & Histology10h 3m
5. Integumentary System2h 28m
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 System3h 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 antibody class crosses the placenta from mother to child?

IgA.

IgE.

IgM.

IgG.

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Verified step by step guidance

Understand the role of antibodies: Antibodies are proteins produced by the immune system to help fight infections. They are classified into different classes based on their structure and function.

Identify the antibody classes: The main classes of antibodies are IgA, IgD, IgE, IgG, and IgM. Each class has distinct functions and properties.

Focus on the function of IgG: IgG is the most abundant antibody in the blood and extracellular fluid, and it plays a crucial role in protecting against bacterial and viral infections.

Learn about placental transfer: During pregnancy, certain antibodies can cross the placenta to provide passive immunity to the fetus. This transfer is essential for protecting the newborn until its immune system matures.

Recognize IgG's unique ability: Among the antibody classes, IgG is the only one that can efficiently cross the placenta from mother to child, providing the fetus with immune protection before birth.