The quadriceps muscles of the anterior compartment of the thigh are responsible for the action of extending the knee. The quadriceps are actually four muscles all working together. They consist of the rectus femoris, the vastus lateralis, the vastus medialis, and the vastus intermedius.They are all monoarticulate, except the rectus femoris which is diarticulate, which means that it acts on two joints.
your quads
hamstrings
The general name for the group is hamstring. The technical names of the two primary muscles are semitendinosus and semimembranosus.
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 triceps is a muscle in the upper arm that extends the elbow. It has no direct relationship to the knee.
hamstring group is the primary muscle group for flexing the knee
Quadriceps muscle or thigh muscle.
cranial tibial muscles
extends leg; straightens knee joint
The prime mover for knee flexion is biceps femoris, semimembranosus, and semitendinosus. The prime mover for knee extension is the Quadriceps â?? vastus lateralis, vastus medialis, vastus intermedius, and rectus femoris
The quadriceps extends the thigh and the hamstring muscles flex the knee
Abductor muscle - moves a limb away from the midlineAdductor muscle - moves a limb towards the midlineExtensor muscle - increase the angle at a joint - extends a limbFlexor muscle - decreases the angle at a joint - flexes a limbPronator muscle - turns a limb to face downwardsSupinator muscle - turns a limb to face upwardsRotator muscle - rotates a limbIn the human body, these are the responsible muscles.*Muscles which move the thigh and their action*Gluteus maximus - Extends and rotates thigh laterally.Adductor longus - Adducts, medially rotates and flexes the thighAdductor brevis - Adducts, laterally rotates and flexes the thighAdductor magnus - Adducts, flexes, laterally rotates and extends the thigh.Rectus femoris - Extends knee and flexes hipVastus lateralis - Extends kneeVastus medialis - Extends kneeVastus intermedius - Extends kneeSartorius - Flexes knee. Flexes hip and rotates femur laterallyBiceps femoris - Flexes leg and extends thighSemitendinosus - Flexes leg and extends thighSemimembranosus - Flexes leg and extends thigh
Your hamstring.