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 type of joint allows only uniaxial movement around its own axis?

Pivot joint

Plane joint

Ball-and-socket joint

Saddle joint

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Verified step by step guidance

Understand the concept of joint classification: Joints are categorized based on their structure and the type of movement they allow. Uniaxial movement refers to motion around a single axis.

Review the characteristics of each joint type: Pivot joints allow rotation around a single axis, plane joints allow gliding movements, ball-and-socket joints allow multiaxial movement, and saddle joints allow biaxial movement.

Focus on the pivot joint: Pivot joints are specifically designed for uniaxial rotation. Examples include the atlantoaxial joint (between the first and second cervical vertebrae) and the proximal radioulnar joint (allowing rotation of the forearm).

Compare the other options: Plane joints (e.g., intercarpal joints) allow sliding or gliding movements, ball-and-socket joints (e.g., shoulder and hip joints) allow movement in multiple axes, and saddle joints (e.g., thumb joint) allow movement in two axes.

Conclude that the pivot joint is the correct answer because it exclusively allows uniaxial movement around its own axis, unlike the other joint types listed.