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

9. Muscle Tissue

Introduction to Muscles and Muscle Tissue

Anatomy & Physiology

9. Muscle Tissue

Introduction to Muscles and Muscle Tissue

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Multiple Choice

Which of the following is an action of the internal oblique muscles?

Elevation of the scapula

Abduction of the thigh

Flexion and rotation of the vertebral column

Extension of the elbow

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Verified step by step guidance

Understand the location and function of the internal oblique muscles. These muscles are part of the abdominal wall and are located beneath the external oblique muscles. They play a role in trunk movement and stabilization.

Review the actions of the internal oblique muscles. Their primary functions include flexion and rotation of the vertebral column, as well as assisting in compressing the abdominal contents during activities like forced expiration.

Eliminate incorrect options based on anatomical knowledge: Elevation of the scapula is performed by muscles like the trapezius and levator scapulae, not the internal oblique. Abduction of the thigh is performed by muscles like the gluteus medius and minimus, not the internal oblique. Extension of the elbow is performed by the triceps brachii, not the internal oblique.

Focus on the correct action: Flexion and rotation of the vertebral column. The internal oblique muscles contract to assist in bending the trunk forward (flexion) and twisting the trunk side-to-side (rotation).

Conclude that the correct answer is 'Flexion and rotation of the vertebral column,' as this aligns with the anatomical function of the internal oblique muscles.