The sartorius is the longest muscle in the body .it is the most superficial thigh muscle and forms the lateral border of the femoral triangle.it is also called a tailored muscle.
Origin-
·
Anterior superior iliac spine
Insertion-
· The upper medial shaft of the tibia
Nerve supply-
·
Femoral nerve(l2,3,4)
Blood supply-
·
5-10 vessels originated from superior
circumflex iliac, lateral femoral, deep femoral, descending geniculate and
femoral artery
Action –
·
Assist flexion,abduction,lateral rotagion of
femur at hip joint
·
Assist flexion,medial rotation of knee(“tailor
position”)
Palpation-
· Close to its origin,just below the anterior superior iliac spine,continuing diagonally across anterior pelvic area to its insertion during active flexion, abduction, and lateral rotation of the hip.
Its name is derived from the Latin
word for tailor, sartor, to indicate its action of bringing the leg into a
cross-legged sitting position. not a powerful muscle, it only assists in these
actions
