Table of contents

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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

Types of Muscle Tissue

Anatomy & Physiology

4. Tissues & Histology

Types of Muscle Tissue

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Multiple Choice

What are the two types of myofilaments found in muscle tissue?

Collagen and Elastin

Actin and Myosin

Tropomyosin and Troponin

Keratin and Fibrin

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Begin by understanding the structure of muscle tissue, which is composed of bundles of muscle fibers. Each muscle fiber contains myofibrils, which are the contractile elements of the muscle.

Within the myofibrils, there are repeating units called sarcomeres. Sarcomeres are the basic functional units of muscle contraction.

Sarcomeres are made up of two main types of myofilaments: thick filaments and thin filaments. These filaments are responsible for muscle contraction.

The thick filaments are primarily composed of the protein myosin. Myosin molecules have heads that bind to actin during muscle contraction.

The thin filaments are primarily composed of the protein actin. Actin provides sites for myosin heads to attach, allowing for the sliding mechanism that leads to muscle contraction.