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

What is smooth muscle primarily responsible for in the human body?

Voluntary movement of the skeleton

Transmitting electrical impulses in the nervous system

Pumping blood throughout the body

Involuntary movements of internal organs such as the digestive tract and blood vessels

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Verified step by step guidance

Smooth muscle is a type of muscle tissue found in the walls of internal organs and structures such as the digestive tract, blood vessels, and the respiratory system.

Unlike skeletal muscle, which is responsible for voluntary movements, smooth muscle is controlled involuntarily by the autonomic nervous system.

Smooth muscle contracts and relaxes to facilitate processes such as peristalsis in the digestive tract, which moves food through the system, and vasoconstriction or vasodilation in blood vessels, which regulates blood flow and pressure.

The contraction of smooth muscle is slower and more sustained compared to skeletal muscle, making it ideal for maintaining functions like the movement of substances through hollow organs.

In summary, smooth muscle is primarily responsible for involuntary movements of internal organs, ensuring essential physiological processes such as digestion and circulation occur efficiently.