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 classified as a biaxial diarthrosis?

Shoulder joint

Metacarpophalangeal joint

Suture joint

Elbow joint

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Verified step by step guidance

Step 1: Understand the classification of joints based on their movement. Diarthrosis refers to freely movable joints, and biaxial diarthrosis specifically allows movement in two planes or axes.

Step 2: Review the characteristics of each joint option provided: - Shoulder joint: This is a ball-and-socket joint, classified as a multiaxial diarthrosis, allowing movement in multiple planes. - Metacarpophalangeal joint: This is a condyloid joint, classified as a biaxial diarthrosis, allowing movement in two planes (flexion/extension and abduction/adduction). - Suture joint: This is a fibrous joint, classified as synarthrosis, meaning it is immovable. - Elbow joint: This is a hinge joint, classified as a uniaxial diarthrosis, allowing movement in one plane (flexion/extension).

Step 3: Focus on the definition of biaxial diarthrosis and identify which joint fits this classification. A biaxial joint must allow movement in two distinct planes.

Step 4: Compare the movement capabilities of the metacarpophalangeal joint with the other options. The metacarpophalangeal joint allows flexion/extension and abduction/adduction, making it biaxial.

Step 5: Conclude that the metacarpophalangeal joint is the correct answer based on its classification as a biaxial diarthrosis, while the other joints do not meet this specific criterion.