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 muscle of the vertebral column attaches to the iliac crest and the iliolumbar ligament?

Psoas major

Erector spinae

Multifidus

Quadratus lumborum

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Verified step by step guidance

Step 1: Understand the anatomy of the vertebral column and the muscles associated with it. The vertebral column is supported by several muscles that help with posture, movement, and stability.

Step 2: Review the origin and insertion points of the Quadratus lumborum muscle. This muscle originates from the iliac crest and the iliolumbar ligament, and inserts onto the transverse processes of the lumbar vertebrae and the 12th rib.

Step 3: Compare the Quadratus lumborum with the other muscles listed in the problem. For example, the Psoas major primarily originates from the lumbar vertebrae and inserts onto the femur, while the Erector spinae group spans the length of the spine and is involved in extension and rotation. The Multifidus is a deep muscle that stabilizes the vertebrae.

Step 4: Focus on the specific attachment points mentioned in the problem (iliac crest and iliolumbar ligament). The Quadratus lumborum is the only muscle among the options that attaches to these structures.

Step 5: Conclude that the Quadratus lumborum is the correct answer based on its anatomical origin and insertion points, which match the description provided in the problem.