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 muscles is primarily responsible for raising the shoulders (elevating the scapula)?

Trapezius

Deltoid

Pectoralis major

Latissimus dorsi

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Verified step by step guidance

Step 1: Understand the function of the muscles listed in the question. The trapezius muscle is primarily responsible for elevating the scapula (raising the shoulders). The deltoid is involved in arm abduction, the pectoralis major is responsible for movements of the chest and arm, and the latissimus dorsi is involved in arm extension and adduction.

Step 2: Recall the anatomy of the trapezius muscle. It is a large, triangular muscle located in the upper back and neck region. Its upper fibers are specifically responsible for scapular elevation.

Step 3: Consider the action described in the question: raising the shoulders. This action corresponds to scapular elevation, which is performed by the upper fibers of the trapezius muscle.

Step 4: Eliminate the other options based on their primary functions. The deltoid, pectoralis major, and latissimus dorsi do not contribute significantly to scapular elevation.

Step 5: Confirm that the trapezius is the correct answer by matching its function to the action described in the question.