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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

4. Tissues & Histology

Introduction to Muscle Tissue

Anatomy & Physiology

4. Tissues & Histology

Introduction to Muscle Tissue

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Multiple Choice

Which of the following statements about myosin is correct?

Myosin is a protein that forms the thin filaments in muscle fibers.

Myosin is primarily found in the sarcoplasmic reticulum of muscle cells.

Myosin is responsible for the passive elasticity of muscle tissue.

Myosin is a motor protein that interacts with actin to cause muscle contraction.

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Understand the role of myosin in muscle contraction: Myosin is a motor protein that plays a crucial role in muscle contraction by interacting with actin filaments.

Differentiate between thin and thick filaments: In muscle fibers, myosin forms the thick filaments, while actin forms the thin filaments.

Identify the location of myosin: Myosin is primarily located in the myofibrils of muscle cells, not in the sarcoplasmic reticulum.

Clarify the function of myosin: Myosin is not responsible for passive elasticity; it actively interacts with actin to facilitate muscle contraction through the sliding filament theory.

Recognize the correct statement: The correct statement is that myosin is a motor protein that interacts with actin to cause muscle contraction, distinguishing it from the other incorrect options.