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 Group
quadraceps and hamstring.
Hamstring, biceps femoris, semitendinosus and semimembranosus
Biceps femoris, semitendinosus, and semimembranosus.
This question is a little confusing. Muscles only move joints not body segments. So the quadriceps muscle group extend the knee joint, but not muscles flex the thigh. If you are thinking of flexion at the hip the muscles are the hip flexors (Illiopsoas group and Rectus Femorus (one of the four quadriceps).
The Rectus Femoris
--and the "Group" muscle that does this are the hamstrings--
The rectus femoris, which is one of the muscles of the quadriceps, extends the knee and flexes the thigh at the hip.
the hamstrings!
Semimembranosus, Semitendinous, Bicep Femoris
All the hamstring muscles can do that.
Semitendinosus.
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
Semitendinosus.
Sartorius, flexes, abducts, and laterally rotates thigh; flexes knee; produces the crossed legged position.
Flexing the thigh, extending the leg, adducts leg
Rectus Femoris is a quadricep muscle located in the anterior thigh, on top of the vastus intermedius (another quadricep). All of the quadriceps insert to the patella, and the tibial tuberosity via the patellar ligament. Together they are responsible for extension of the knee. Rectus Femoris is the only quadricep that also crosses the hip joint (acetabulofemoral joint) and attaches to the AIIS (anterior inferior iliac spine). Because of this, Rectus Femoris also assists in flexion of the hip.
The iliolumbar ligament has been described as the most important ligament for restraining movement at the lumbosacral junction. In addition, it may play an important role in restraining movement in the sacroiliac joints. The Sartorius muscle is a long thin muscle that runs down the length of the thigh. It is the longest muscle in the human body. Its upper portion forms the lateral border of the femoral triangle. Its origin extends from the anterior superior spine of the ilium, with insertion into the medial border of the tuberosity of the tibia, with nerve supply from the femoral nerve, and whose action flexes the thigh and leg and rotates the leg medially and the thigh laterally. Also called tailor's muscle.
thigh
The quadriceps femoris muscle group flexes the thigh at the hip, extends the leg (i.e. straightens the knee), and adducts the leg. The quadriceps are located at the anterior thigh. It is a muscle that reacts with hamstrings and gastrocnemius. The four muscles in this group are the rectus femoris, vastus medius, vatus lateralis, and the vastus intermedius.
Several muscles work together to extend the thigh. the psoas major flexes and rotates the thigh medially, as does the iliacus. The gluteus maximus extends and rotates the thight laterally. In addition, the adductor longus, adductor brevis, and adductor magnus help rotate, flex, and move the thigh.
Longest muscle is there in your thigh. It is sartorius. It goes from your pelvic bone to leg bone.
Much of the semimembranosus lies deep to the semitendinosus.
The vastus lateralis (outer thigh) because it is the largest.