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

Which of the following statements is true of HIV?

HIV can be cured with a short course of antibiotics.

HIV attacks the body's immune system, specifically the CD4 cells.

HIV is only transmitted through blood transfusions.

HIV can be transmitted through casual contact such as hugging.

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Verified step by step guidance

Understand the nature of HIV: HIV stands for Human Immunodeficiency Virus, which is a virus that attacks the immune system, specifically targeting CD4 cells, which are crucial for immune response.

Recognize the transmission methods: HIV is primarily transmitted through certain body fluids such as blood, semen, vaginal fluids, rectal fluids, and breast milk. It is not transmitted through casual contact like hugging.

Identify the misconception about treatment: HIV cannot be cured with antibiotics. Antibiotics are used to treat bacterial infections, whereas HIV is a viral infection. Antiretroviral therapy (ART) is used to manage HIV.

Evaluate the statement about blood transfusions: While HIV can be transmitted through blood transfusions, this is not the only method of transmission. Safe practices and screening have significantly reduced this risk.

Select the correct statement: Based on the understanding of HIV's impact on the immune system and transmission methods, the true statement is that HIV attacks the body's immune system, specifically the CD4 cells.