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 First-Line Defenses

Anatomy & Physiology

21. The Immune System

Introduction to First-Line Defenses

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Multiple Choice

Why do many health care facilities prohibit the use of brightly colored nail polish among staff?

Brightly colored nail polish interferes with the effectiveness of hand sanitizers.

Brightly colored nail polish is considered unprofessional in all medical settings.

Brightly colored nail polish can cause allergic reactions in patients.

Brightly colored nail polish can harbor microorganisms and make it difficult to detect contamination.

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Verified step by step guidance

Understand the context: In health care settings, maintaining hygiene and preventing the spread of microorganisms is critical to patient safety.

Recognize the role of nails in hygiene: Nails, especially when covered with brightly colored polish, can harbor microorganisms such as bacteria and fungi, which may pose a risk to patients.

Consider the visibility factor: Brightly colored nail polish can obscure contamination or dirt under the nails, making it harder to detect and clean effectively.

Relate this to infection control protocols: Health care facilities often have strict guidelines to minimize infection risks, including restrictions on nail polish and artificial nails.

Conclude the reasoning: The prohibition of brightly colored nail polish is primarily to ensure that staff can maintain proper hand hygiene and reduce the risk of transmitting microorganisms to patients.