Knee anatomy. Computer artwork of the rear of the knee, showing cartilage, ligaments and muscles. At centre is the top of the tibia (shin bone). Its surface is covered by protective articular cartilage (white), which is itself partially covered by the menisci (cream, crescent-shaped), which act as shock absorbers. At centre is the posterior cruciate ligament, a fibrous band of connective tissue that connects the femur (thigh bone) and tibia and limits backwards movement of the joint. At bottom is the gastrocnemius muscle. At top are the three hamstring muscles, from left to right; the semimembranosus, the semitendinosus and the biceps femoris muscles.
October 7th, 2018
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