The femur, also known as the thighbone, is the largest and strongest bone in the human body. It is located in the upper leg, extending from the hip to the knee joint. The femur is surrounded by several muscles that attach to it, allowing for movement of the leg.The muscles that attach to the femur include:Quadriceps femoris muscle: This muscle group includes the rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius muscles. These muscles originate from the pelvis and femur and attach to the patella and tibia via the patellar tendon. They are responsible for extending the knee joint and flexing the hip joint.Hamstring muscles: The hamstring muscle group includes the biceps femoris, semimembranosus, and semitendinosus muscles. These muscles originate from the ischial tuberosity of the pelvis and attach to the tibia and fibula bones of the lower leg. They are responsible for flexing the knee joint and extending the hip joint.Gluteus maximus muscle: This muscle originates from the ilium bone of the pelvis and attaches to the femur bone. It is responsible for extending the hip joint and rotating the thigh laterally.

圖片編號： 275692056
拍攝者： Paihub