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 move the glenohumeral joint and originate on the axial skeleton?

Pectoralis major

Deltoid

Supraspinatus

Teres minor

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Verified step by step guidance

Step 1: Understand the anatomy of the glenohumeral joint. The glenohumeral joint is the ball-and-socket joint of the shoulder, where the humerus (upper arm bone) articulates with the glenoid cavity of the scapula.

Step 2: Identify the muscles listed in the problem and their origins. The muscles mentioned are Pectoralis major, Deltoid, Supraspinatus, and Teres minor. To determine which muscles originate on the axial skeleton, we need to know their anatomical origins.

Step 3: Recall that the axial skeleton includes the bones of the skull, vertebral column, ribs, and sternum. Muscles that originate on these structures are considered to originate from the axial skeleton.

Step 4: Analyze the origin of each muscle: Pectoralis major originates from the sternum and clavicle (part of the axial skeleton), Deltoid originates from the scapula and clavicle (not axial skeleton), Supraspinatus originates from the scapula (not axial skeleton), and Teres minor originates from the scapula (not axial skeleton).

Step 5: Conclude that the Pectoralis major is the muscle that moves the glenohumeral joint and originates on the axial skeleton. The other muscles listed do not originate on the axial skeleton.