example of flexors: Biceps when you flexexample of extensors: Triceps when you relax your arm
shoulder depressors, extensors, adductors and abductors. elbow extensors, wrist extensors and finger flexors.
a muscle that extends or straighten a limb or body part is called extensor
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.
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.
Posterior
My quadriceps are sore. The coach's most dreaded words were, "Prepare to stretch your quadriceps".
Quadriceps will extend your lower leg.
Quadriceps, quadratus lumborum, quadratus femoris are body parts that start with Q.
If both the flexors and extensors contracted simultaneously there would be no movement in the muscle whatsoever.