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 best describes a key physiological characteristic of skeletal muscle tissue?

It is under voluntary control and responsible for body movement.

It lacks striations and is multinucleated.

It lines hollow organs and is responsible for peristalsis.

It is found only in the walls of the heart and contracts involuntarily.

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Verified step by step guidance

Step 1: Begin by identifying the key characteristics of skeletal muscle tissue. Skeletal muscle is one of the three types of muscle tissue in the human body, alongside cardiac and smooth muscle.

Step 2: Recall that skeletal muscle tissue is under voluntary control, meaning its contractions are consciously controlled by the somatic nervous system. This is a defining feature of skeletal muscle.

Step 3: Understand that skeletal muscle tissue is responsible for body movement. It attaches to bones via tendons and facilitates movement by contracting and relaxing.

Step 4: Note that skeletal muscle tissue is striated, meaning it has a striped appearance under a microscope due to the arrangement of actin and myosin filaments. It is also multinucleated, meaning each muscle fiber contains multiple nuclei.

Step 5: Compare skeletal muscle tissue to the other options provided. Smooth muscle lines hollow organs and is responsible for peristalsis, while cardiac muscle is found only in the heart and contracts involuntarily. These characteristics do not describe skeletal muscle tissue.