Knee Anatomy & Structure

The knee is a complex hinge joint connecting the femur (thigh bone), tibia (shin bone), and patella (kneecap). It includes ligaments—ACL, PCL, MCL, LCL—stabilizing motion, and tendons like the quadriceps and patellar tendon linking muscles to bones. Articular cartilage cushions bone ends, while the medial and lateral menisci act as shock absorbers. The synovial membrane secretes lubricating fluid, and bursae reduce friction. The joint allows flexion, extension, and slight rotation, supported by muscles and connective tissues for mobility and weight-bearing.

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