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 joints is unique to the thumb?

Ball and socket joint

Saddle joint

Hinge joint

Pivot joint

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Verified step by step guidance

Understand the types of joints: In anatomy, joints are classified based on their structure and the movements they allow. Common types include ball and socket, hinge, pivot, and saddle joints.

Identify the unique joint for the thumb: The thumb has a unique joint called the saddle joint, which allows for a greater range of motion compared to other types of joints.

Explore the saddle joint: The saddle joint is characterized by its concave and convex surfaces that resemble a saddle, allowing for movements such as flexion, extension, abduction, adduction, and circumduction.

Compare with other joints: Ball and socket joints allow for rotational movement (e.g., shoulder and hip), hinge joints allow for bending and straightening (e.g., elbow and knee), and pivot joints allow for rotational movement around a single axis (e.g., neck).

Conclude why the saddle joint is unique: The saddle joint's structure and function are distinct, providing the thumb with its unique ability to oppose other fingers, which is crucial for grasping and manipulating objects.