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

9. Muscle Tissue

Introduction to Muscles and Muscle Tissue

Anatomy & Physiology

9. Muscle Tissue

Introduction to Muscles and Muscle Tissue

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Multiple Choice

Which of the following structures is found within a skeletal muscle?

Alveolus

Myofibril

Neuron

Osteon

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Verified step by step guidance

Step 1: Begin by identifying the primary function and location of each structure listed in the options. For example, an alveolus is a structure found in the lungs and is involved in gas exchange, not skeletal muscle.

Step 2: Understand the anatomy of skeletal muscle. Skeletal muscle is composed of muscle fibers, which contain smaller structures called myofibrils. Myofibrils are responsible for muscle contraction and are unique to muscle tissue.

Step 3: Examine the other options. A neuron is a nerve cell that transmits electrical signals and is part of the nervous system, not directly part of skeletal muscle. An osteon is a structural unit of compact bone, unrelated to muscle tissue.

Step 4: Focus on the correct answer, 'Myofibril.' Myofibrils are cylindrical structures within muscle fibers that contain the proteins actin and myosin, which interact to produce muscle contraction.

Step 5: Conclude that the correct structure found within skeletal muscle is the myofibril, as it is integral to the muscle's function and anatomy.