Rectus femoris and the three vasti
quadricep femoris
quadricep
Your thigh muscle is called your Quadricep.
The hamstring muscle group (biceps femoris, semitendonosis, semimembranosis) are the antagonists to the quadricep group.
The prim mover for hip flexion is the Rectus femoris. This is a quadricep muscle that crosses the hip joint.
The lengthening of a muscle is called 'relaxing'. As the SHORT muscles work antagonistically- when one contracts, one relaxes. Therefore as one muscle shortens the other lengthens. This is between the bicep and tricep and the hamstring and quadricep. When a muscle shortens it also thickens, this is why you can feel your muscle rise when you bring your arm towards you.
The lengthening of a muscle is called 'relaxing'. As the SHORT muscles work antagonistically- when one contracts, one relaxes. Therefore as one muscle shortens the other lengthens. This is between the bicep and tricep and the hamstring and quadricep. When a muscle shortens it also thickens, this is why you can feel your muscle rise when you bring your arm towards you.
It is the rectus femoris, which along with the action of knee extension, it also flexes the hip
Sartorius is one of the Quadricep muscles. It is the only muscle that I know of that has a double insertion point. It inserts on the distal part of the hip and serpentines to the medial part of the knee where it inserts.
Quadriceps weigh about 90 pounds. What? Are you kidding? Where did you get this information? Shame on you for misleading readers in this manner.
False. The quadriceps muscle is primarily responsible for extending the knee, not flexing it. The muscles that flex the knee are mainly the hamstrings.
Flexing the thigh, extending the leg, adducts leg