The major flexors of the knee are the hamstrings, which include: biceps femoris, semitendinosus, and semimembranosus. The major extensors of the knee are the quadriceps, which include: rectus femoris, vastus medialis, and vastus lateralis.
a muscle that extends or straighten a limb or body part is called extensor
shoulder depressors, extensors, adductors and abductors. elbow extensors, wrist extensors and finger flexors.
The flexor would be the hamstring, and gastrocnemius, which bend/flex the knee. The quadriceps, are extensors, which straighten/extend the knee.
The three muscles that make up the hamstring muscle group: the bicep femoris, semitendinosus and semimembranosus and the rectus femoris, one of the quadriceps muscles, all act as knee extensors and hip flexors.
Muscles that bend a joint are flexors; musces that straighten a joint are extensors.
Quadriceps, quadratus lumborum, quadratus femoris are body parts that start with Q.
My quadriceps are sore. The coach's most dreaded words were, "Prepare to stretch your quadriceps".
Quadriceps will extend your lower leg.
For extending the fingers.
Posterior
example of flexors: Biceps when you flexexample of extensors: Triceps when you relax your arm