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The knee muscles are crucial for movement in the lower extremities. The quadriceps consist of four powerful muscles located in the front of the thigh - Vastus medialis, Vastus intermedius, Vastus lateralis, and Rectus femoris. Working together, they form the quadricep tendon and function as knee extenders. Additional muscles like Sartorius and Gracilis attach to the anteriormedial tibia, aiding in flexion. The Pes ansurine is the area where these muscles converge to facilitate coordination and strength in knee movements.
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Muscles that move the lower extremities are the strongest in the body • Quadriceps – large group of 4 muscles in the front of thigh • Vastus medialis • Vastus intermedius • Vastus lateralis • Rectus femoris
They join together on anterior of thigh and connect at the quadricep tendon • Very powerful extensor of knee
Two more muscles • Sartorius and gracillis • Attach at the anteriormedial tibia
Pes ansurine – area where sartorius and gracillis and other mucles attach at the anteriomedial tibia • Help with flexion