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

Your risk of a musculoskeletal disorder (MSD) is increased if you:

Maintain proper ergonomic posture

Perform repetitive motions for extended periods

Use assistive devices when lifting heavy objects

Take frequent breaks during physical activity

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Verified step by step guidance

Step 1: Understand the concept of musculoskeletal disorders (MSDs). MSDs are injuries or disorders affecting the muscles, nerves, tendons, ligaments, joints, cartilage, or spinal discs, often caused by repetitive strain, overuse, or improper ergonomics.

Step 2: Analyze the options provided in the problem. Consider which behaviors or actions increase the risk of developing MSDs. For example, repetitive motions for extended periods can lead to strain and overuse injuries.

Step 3: Evaluate the other options. Maintaining proper ergonomic posture, using assistive devices, and taking frequent breaks are preventive measures that reduce the risk of MSDs rather than increase it.

Step 4: Identify the correct answer based on the analysis. Performing repetitive motions for extended periods is the behavior most associated with an increased risk of MSDs.

Step 5: Reflect on the importance of ergonomics and preventive strategies in reducing the risk of MSDs, such as proper posture, breaks, and assistive devices, to maintain musculoskeletal health.