Anatomy of the Hamstring Muscles

The hamstring has three
seperate
muscles located behind the upper part of the leg called the biceps
femoris, semitendinosus, and the semimembranosus.
The
Function of the Muscles
These muscles
are located on the upper region behind the thigh, and there purpose is
to move and stabilize the hip
and the knee.
However, at the hip, all those
muscles pull the hip backwards into
extension, and that causes the knee to bend.
These muscles work when
individuals are
walking, running, and jumping. They work extremely hard during
sprinting. Therefore, generally this muscle is being stressed out when
sprinting which causes injury in that muscle.
Anatomy
of the Muscle
These muscles are often
divided into the medial (inside) and lateral (outside).
The muscles known as
semitendinosus and the semimembranosus run down towards the tibia which
is the bone on the inside of the lower leg. For that, the biceps
femoris
runs down to the fibula, which is the bone on the outside of the lower
leg.
.......All three muscles all begin on the
bottom of the pelvis.