Table of contents

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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 Heart2h 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

9. Muscle Tissue

Structure of a Skeletal Muscle

Anatomy & Physiology

9. Muscle Tissue

Structure of a Skeletal Muscle

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Multiple Choice

Which of the following statements is INCORRECT?

Skeletal muscle contractions help maintain body temperature.

Skeletal muscles are responsible for the pumping action of the heart.

Smooth muscles form valves regulating the passage of substances through internal openings of the digestive and urinary tracts.

The contractions of skeletal muscles pull on tendons and move elements of the skeleton.

Skeletal muscles support the weight of some internal organs.

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Verified step by step guidance

Identify the primary functions of skeletal muscles, which include movement, posture maintenance, and heat production through contractions.

Understand that skeletal muscles are voluntary muscles attached to bones and are responsible for movements of the skeleton.

Recognize that the heart's pumping action is controlled by cardiac muscle, not skeletal muscle. Cardiac muscle is involuntary and has a unique structure and function.

Review the role of smooth muscles, which are involuntary and found in walls of internal organs, helping regulate the passage of substances through systems like the digestive and urinary tracts.

Evaluate each statement based on the functions of skeletal, cardiac, and smooth muscles to determine which statement incorrectly attributes a function to skeletal muscles.