Knee Joint Is Composed Of Three Bones. Thigh Bone Called Femur, Shin Bone Called Tibia And Kneecap Called Patella. Particular Surface of All These Is Covered By a Smooth Surface Called CARTILAGE. Normal Cartilage Prevents Friction between Bones and Provides painless Smooth Movement Like Flexion and Extension. Between Cartilages Of Femur and Tibia, There Are Two Meniscus Medial and Lateral. These Menisci Increase The Surface Area and Also Aids In Preventing Friction While Flexion and Extension Movements. These Menisci Also Prevent Jerks and Increase Its Stability.
