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 type of muscle tissue is primarily responsible for causing vasoconstriction in blood vessels?

Smooth muscle

Cardiac muscle

Striated muscle

Skeletal muscle

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Verified step by step guidance

Understand the function of vasoconstriction: Vasoconstriction is the narrowing of blood vessels, which reduces blood flow. This process is controlled by the contraction of muscle tissue in the walls of blood vessels.

Identify the type of muscle tissue found in blood vessel walls: Blood vessels, specifically arteries and arterioles, contain a layer of smooth muscle in their walls. This smooth muscle is involuntary and responsible for regulating vessel diameter.

Differentiate between the muscle types: Smooth muscle is non-striated and involuntary, cardiac muscle is striated and involuntary (found only in the heart), skeletal muscle is striated and voluntary (used for movement), and striated muscle is a general term for both skeletal and cardiac muscle.

Recognize the role of smooth muscle in vasoconstriction: Smooth muscle contracts in response to signals from the autonomic nervous system or chemical signals, causing the blood vessel to narrow (vasoconstriction). This is a key function of smooth muscle tissue.

Conclude that smooth muscle is the correct answer: Based on its location in blood vessel walls and its role in involuntary contraction, smooth muscle is primarily responsible for causing vasoconstriction in blood vessels.