extend
The primary antagonist to the rectus femoris is the biceps femoris, a muscle of the hamstring group. When the rectus femoris contracts to flex the hip and extend the knee, the biceps femoris acts to flex the knee and extend the hip, helping to create balanced movement.
The Femoral nerve. (The motor branches innervate anterior thigh muscles - quadriceps, which flex the thigh and extend the knee.)
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 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 rectus femoris muscle is a synergist of the iliopsoas. It works together with the iliopsoas to flex the hip joint.
Quadriceps contracts to extend the knee joint. Rectus femoris, the part of quadriceps flex the hip joint on the thigh.
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 Hamstrings consist of three muscles that have the same action: the Biceps Femoris, Semitendinosus and Semimembranosus. Their actions are to flex the knee joint, adduct the leg, and extend the thigh. The Quadriceps femoris is four muscles of the femur. They are the Rectus femoris, Vastus lateralis, Vastus medialis, and Vastus intermedialis. As a group (the quads) they extend the leg at the knee.
The primary antagonist to the rectus femoris is the biceps femoris, a muscle of the hamstring group. When the rectus femoris contracts to flex the hip and extend the knee, the biceps femoris acts to flex the knee and extend the hip, helping to create balanced movement.
The Femoral nerve. (The motor branches innervate anterior thigh muscles - quadriceps, which flex the thigh and extend the knee.)
Muscles that flex the knee are the hamstrings which include your semitendinosus, semimembranosus and biceps femoris musces. Muscles that extend the knee are the quadriceps muscles which includes your vastus lateralis obliques, vastus intermedius, vastus medialis obliques and your rectus femoris.
The two main muscle groups in the upper leg are the quadriceps which extend your leg and the hamstrings which contract the leg.The biceps femoris, semitendinosus, and semimembranosus.The Hamstring Groupquadraceps and hamstring.Hamstring, biceps femoris, semitendinosus and semimembranosusBiceps femoris, semitendinosus, and semimembranosus.
The Quadriceps extend just like the triceps, which include the rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius. The Hamstrings flex just like the biceps, which include the biceps femoris, semitendinosus, and semimembranosus. Quads extend, Triceps extend Hamstrings flex, arm biceps (biceps brachii, brachialis) flex
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.
Biceps Femoris, Semimembranosus, and Semitendinosus
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.
To extend the leg straight at the knee you use the quadriceps. To bend the knee, you need the hamstring.Hamstring muscle groups.