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

8. Joints

Introduction to Joints

Anatomy & Physiology

8. Joints

Introduction to Joints

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Multiple Choice

Which of the following is the most mobile joint in the human body?

Hip joint

Elbow joint

Knee joint

Shoulder (glenohumeral) joint

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Verified step by step guidance

Understand the concept of joint mobility: Mobility refers to the range of motion a joint can achieve. The more mobile a joint is, the greater its ability to move in multiple directions.

Review the anatomy of the shoulder (glenohumeral) joint: The shoulder joint is a ball-and-socket joint formed by the articulation of the humeral head (upper arm bone) and the glenoid cavity of the scapula (shoulder blade). This structure allows for extensive movement.

Compare the mobility of the shoulder joint to other joints: The hip joint is also a ball-and-socket joint but has less mobility due to deeper socket articulation and stronger ligaments. The elbow and knee joints are hinge joints, which primarily allow movement in one plane (flexion and extension), making them less mobile.

Consider the factors contributing to the shoulder joint's mobility: The shallow glenoid cavity, loose joint capsule, and surrounding muscles (rotator cuff) allow the shoulder joint to move in multiple planes, including flexion, extension, abduction, adduction, rotation, and circumduction.

Conclude that the shoulder (glenohumeral) joint is the most mobile joint in the human body due to its anatomical structure and range of motion capabilities.