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

4. Tissues & Histology

Types of Muscle Tissue

Anatomy & Physiology

4. Tissues & Histology

Types of Muscle Tissue

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Multiple Choice

Which activities predominantly use slow-twitch muscle fibers?

Sprinting

High-intensity interval training

Weightlifting

Marathon running

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Verified step by step guidance

Understand the characteristics of slow-twitch muscle fibers: Slow-twitch fibers, also known as Type I fibers, are designed for endurance and continuous activity. They are rich in mitochondria, myoglobin, and capillaries, which allow them to sustain aerobic metabolism and resist fatigue.

Identify the type of activities that require endurance: Activities that require prolonged effort and stamina, rather than short bursts of power, predominantly use slow-twitch muscle fibers.

Analyze the activities listed: Sprinting, high-intensity interval training, and weightlifting are activities that typically require fast-twitch muscle fibers due to their need for quick, explosive movements.

Consider marathon running: Marathon running is an endurance activity that requires sustained effort over a long period, making it reliant on slow-twitch muscle fibers.

Conclude that marathon running predominantly uses slow-twitch muscle fibers due to its endurance nature, contrasting with the other activities listed which rely more on fast-twitch fibers.