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 the location and movement of involuntary muscles?

They are located in the skin and move in response to external stimuli only.

They are found in the walls of internal organs and move without conscious control.

They are found in the heart and move only when stimulated by nerves.

They are attached to bones and move under voluntary control.

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Verified step by step guidance

Step 1: Begin by identifying the term 'involuntary muscles.' Involuntary muscles are muscles that function without conscious control, meaning their movement is automatic and not directed by voluntary thought.

Step 2: Understand the types of involuntary muscles. These include smooth muscles and cardiac muscles. Smooth muscles are found in the walls of internal organs such as the stomach, intestines, and blood vessels. Cardiac muscles are specific to the heart.

Step 3: Analyze the options provided in the question. Eliminate choices that describe voluntary muscles or incorrect locations. For example, muscles attached to bones and moving under voluntary control are skeletal muscles, not involuntary muscles.

Step 4: Focus on the correct description of involuntary muscles. Smooth muscles move in response to internal stimuli such as hormones or nerve signals, and cardiac muscles contract rhythmically without conscious control.

Step 5: Conclude that the correct answer is: 'They are found in the walls of internal organs and move without conscious control,' as this accurately describes the location and movement of involuntary muscles.