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

Which of the following is a characteristic of skeletal muscle?

It lacks striations.

It is found in the walls of hollow organs.

It is under voluntary control.

It has intercalated discs.

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Verified step by step guidance

Understand the characteristics of skeletal muscle: Skeletal muscle is one of the three types of muscle tissue in the human body, alongside cardiac and smooth muscle. It is primarily responsible for voluntary movements and is attached to bones via tendons.

Review the structural features of skeletal muscle: Skeletal muscle is striated, meaning it has a striped appearance under a microscope due to the arrangement of actin and myosin filaments. This distinguishes it from smooth muscle, which lacks striations.

Compare skeletal muscle to other muscle types: Skeletal muscle is under voluntary control, meaning its contractions are consciously controlled by the somatic nervous system. In contrast, cardiac muscle (found in the heart) is involuntary and has intercalated discs, while smooth muscle (found in the walls of hollow organs) is also involuntary and lacks striations.

Eliminate incorrect options: Based on the characteristics of skeletal muscle, eliminate options that describe features of other muscle types, such as 'It lacks striations' (smooth muscle), 'It is found in the walls of hollow organs' (smooth muscle), and 'It has intercalated discs' (cardiac muscle).

Identify the correct answer: The defining characteristic of skeletal muscle is that it is under voluntary control, which aligns with its role in facilitating conscious movement.