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The KNEE joint is an example of which type of synovial joint?
ABall-and-socket (like the hip joint)
BHinge joint (allows movement in one plane)
CPivot joint (like atlas + axis)
DSaddle joint (like at thumb base)
Answer & Solution
Correct answer: B. Hinge joint (allows movement in one plane)
KNEE = HINGE joint (allows flexion + extension in ONE plane). Other hinge joints: elbow, finger joints. Ball-and-socket: hip + shoulder (multi-plane motion). Pivot: atlas-axis (rotation). Saddle: thumb base.
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