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What are the muscles that cross the knee joint?

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The rectus femoris originates at the iliac crest (pelvis) and inserts on the tibia (lower leg), thus it crosses two joints. The vastus medialis, vastus intermedius, and vastus lateralis originate on the femur (thigh) and insert on the tibia, thus making them single-joint muscles. read more

The hamstrings are three muscles that run down the back of the leg to cross the knee joint. They work together to bend or flex the knee. The tendons of the semimembranosus and the semitendinosus insert on the medial side of the knee. These two muscles aid in the knee’s slight internal rotation. read more

The main muscles that give shape to your thigh are the quadriceps femoris muscle group. These four muscles connect to the patellar tendon, which attaches to your patella -- your kneecap. No actual muscles specifically cross the knee joint; most support the knee from behind and above. read more

Start studying Muscles Crossing Joints. Learn vocabulary, terms, and more with flashcards, games, and other study tools. read more

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