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

Which of the following methods uses moist heat to destroy microbes?

Ultraviolet radiation

Dry heat sterilization

Filtration

Autoclaving

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Verified step by step guidance

Understand the concept of sterilization: Sterilization is a process used to eliminate all forms of life, including microbial spores, from an object or surface.

Identify the different methods of sterilization: Common methods include moist heat, dry heat, radiation, and filtration.

Define moist heat sterilization: This method uses steam under pressure to kill microorganisms. The most common device used for this purpose is an autoclave.

Compare the methods: Ultraviolet radiation uses light to kill microbes, dry heat sterilization uses high temperatures without moisture, and filtration physically removes microbes without killing them.

Recognize that autoclaving is the method that uses moist heat: Autoclaving involves using steam at high pressure and temperature to effectively destroy all microbial life, making it the correct answer.