Question

due to its flexion and extension movement, the elbow joint is classified as a __________ joint.

plane

ball - and - socket

pivot

hinge

Explanation:

To determine the type of elbow joint, we analyze each option:

• Plane joints allow gliding (e.g., wrist), not flexion/extension.
• Ball - and - socket joints (e.g., shoulder) allow multi - directional movement.
• Pivot joints (e.g., neck) allow rotation.
• Hinge joints (e.g., elbow, knee) allow flexion and extension (movement in one plane), matching the elbow's movement.

Answer:

D. Hinge