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 is attached to the posterior layer of the thoracolumbar fascia?

Sternocleidomastoid

Pectoralis major

Latissimus dorsi

Rectus abdominis

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Verified step by step guidance

Understand the anatomy of the thoracolumbar fascia: The thoracolumbar fascia is a strong connective tissue structure located in the lower back region. It serves as an attachment site for several muscles and provides support to the spine.

Identify the posterior layer of the thoracolumbar fascia: The posterior layer is the outermost layer of the thoracolumbar fascia, and it is closely associated with muscles that contribute to movements of the back and upper limb.

Review the muscle options provided: Sternocleidomastoid, Pectoralis major, Latissimus dorsi, and Rectus abdominis. Consider their anatomical locations and functions to determine which muscle is connected to the posterior layer of the thoracolumbar fascia.

Focus on the Latissimus dorsi: The Latissimus dorsi is a large, flat muscle located in the lower back. It originates from the posterior layer of the thoracolumbar fascia, among other structures, and plays a key role in movements such as shoulder extension, adduction, and internal rotation.

Confirm the answer: Based on anatomical knowledge, the Latissimus dorsi is the correct muscle attached to the posterior layer of the thoracolumbar fascia. The other muscles listed (Sternocleidomastoid, Pectoralis major, and Rectus abdominis) are not anatomically connected to this structure.