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

When properly activated, which core muscle creates tension in the thoracolumbar fascia?

Rectus abdominis

Iliopsoas

External oblique

Transversus abdominis

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Verified step by step guidance

Understand the thoracolumbar fascia: It is a connective tissue structure located in the lower back that provides stability and support to the spine and surrounding muscles.

Learn the role of the transversus abdominis: This is a deep core muscle that wraps around the abdomen horizontally, acting like a corset to stabilize the spine and pelvis.

Recognize the activation mechanism: When the transversus abdominis contracts, it increases intra-abdominal pressure and creates tension in the thoracolumbar fascia, contributing to spinal stability.

Differentiate the other muscles: The rectus abdominis primarily flexes the trunk, the iliopsoas is involved in hip flexion, and the external oblique assists in trunk rotation and lateral flexion. None of these directly create tension in the thoracolumbar fascia.

Conclude the correct answer: The transversus abdominis is the core muscle responsible for creating tension in the thoracolumbar fascia when properly activated.