gracilis , adductor longus , adductor brevis and upper part of adductor magnus
The muscle group is called the Quadriceps
The hamstring group consists of three muscles: biceps femoris, semitendinosus, and semimembranosus. These muscles are located at the back of the thigh and function to flex the knee and extend the hip.
The quadriceps femoris is a group of four muscles located on the front of the thigh that work together to extend the knee and flex the hip. These muscles are important for activities like walking, running, and jumping.
The primary muscle responsible for extending the thigh is the quadriceps femoris, specifically the rectus femoris. To flex the knee, the primary muscles involved are the hamstrings, particularly the biceps femoris, semitendinosus, and semimembranosus. These muscle actions are important for movements like running and kicking.
The muscle of the thigh are classified into three groups, anterior group, posterior group, and interior or adductors group. There are four muscle on the anterior group - quadriceps femoris- and their function is to extend the knee or extend the thigh depend on what part of the muscle don't move. Those muscle are the rectus femorarlis, vastu intermedius, vastu medialis, and vastus lateralis. The muscle that flex the knee are located on the back of the thigh and form the posterior group. They are the biceps femoris, semitendinousus, and the semimembranosus, better known as Hamstring.
The primary muscles responsible for flexing the leg at the knee joint are the hamstrings (biceps femoris, semitendinosus, semimembranosus) and the gracilis. These muscles work together to bend the knee and bring the lower leg towards the thigh.
The opposite of the quadriceps, which are the muscles located at the front of the thigh responsible for extending the knee, is the hamstrings. The hamstrings are a group of muscles located at the back of the thigh that primarily function to flex the knee and extend the hip. Together, these muscle groups work in opposition to facilitate movement and stability in the legs.
Quadricpes femoris group
The Femoral nerve. (The motor branches innervate anterior thigh muscles - quadriceps, which flex the thigh and extend the knee.)
The gluteal muscles.
The hamstrings are the group of muscles that form the flesh of the posterior surface of the thigh. They consist of the biceps femoris, semitendinosus, and semimembranosus muscles. These muscles are responsible for knee flexion and hip extension.
The "hamstrings" or semimembranosus and semitendinosus muscles.