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

Introduction to Muscle Tissue

Anatomy & Physiology

4. Tissues & Histology

Introduction to Muscle Tissue

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Multiple Choice

Why do slow-twitch muscle fibers have more mitochondria compared to fast-twitch muscle fibers?

Because they rely on aerobic respiration for sustained energy production.

Because they are primarily used for anaerobic activities.

Because they require more energy for short bursts of activity.

Because they have a higher concentration of myoglobin.

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Verified step by step guidance

Understand the difference between slow-twitch and fast-twitch muscle fibers. Slow-twitch fibers are designed for endurance and prolonged activities, while fast-twitch fibers are suited for short, explosive movements.

Recognize the energy requirements of slow-twitch muscle fibers. These fibers rely on aerobic respiration, which requires oxygen to produce ATP efficiently over extended periods.

Identify the role of mitochondria in muscle cells. Mitochondria are the organelles responsible for aerobic respiration, converting oxygen and nutrients into ATP, the energy currency of the cell.

Explain why slow-twitch fibers have more mitochondria. Since these fibers depend on aerobic respiration for sustained energy production, they have a higher number of mitochondria to meet their energy demands.

Consider the presence of myoglobin in slow-twitch fibers. Myoglobin is a protein that binds oxygen, facilitating its availability for aerobic respiration, which complements the function of mitochondria in these fibers.