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

Classification of Joints

Anatomy & Physiology

8. Joints

Classification of Joints

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Multiple Choice

Which of the following is classified as a ball-and-socket joint?

Intervertebral joint

Shoulder joint

Knee joint

Elbow joint

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Verified step by step guidance

Step 1: Understand the classification of synovial joints. Synovial joints are categorized based on their structure and the type of movement they allow. Ball-and-socket joints are one type of synovial joint that permits movement in multiple axes and planes, including rotation.

Step 2: Recall the defining features of a ball-and-socket joint. These joints consist of a spherical head (the 'ball') of one bone fitting into a cup-like cavity (the 'socket') of another bone. This structure allows for a wide range of motion, including flexion, extension, abduction, adduction, and rotation.

Step 3: Analyze the options provided in the question. The intervertebral joint, knee joint, and elbow joint are not ball-and-socket joints. The intervertebral joint is classified as a cartilaginous joint, while the knee and elbow joints are hinge joints, allowing movement primarily in one plane.

Step 4: Identify the shoulder joint as the correct answer. The shoulder joint (glenohumeral joint) is a ball-and-socket joint, where the spherical head of the humerus fits into the glenoid cavity of the scapula, enabling a wide range of motion.

Step 5: Conclude that the shoulder joint is the correct classification for a ball-and-socket joint based on its anatomical structure and functional characteristics.