Sartorius

quadriceps-muscle-medial-2-labeledMuscle Origin

Anterior superior iliac spine to medial tibia.

Its origin is the anterior superior iliac spine of the pelvic bone.

Insertion

Anteromedial surface of the upper tibia in the pes anserinus.

Insertion is in the upper medial surface of tibial shaft at the tibial flare; the muscle inserts into the proximal part of the tibia on the medial surface of its body.

Action

Flexes leg at knee and laterally rotates thigh.

Flexion, abduction, and lateral rotation of the hip, flexion of the knee.

Innervation – Nerve control

Femoral nerve (sometimes from the intermediate cutaneous nerve of thigh).

Situated in the anterior fascial compartment of the thigh, the sartorius is innervated via the anterior (or superficial) branch of the femoral nerve (AORN Journal, J. Murauski). The femoral nerve is responsible for both sensory and motor components in the sartorius and provides proprioceptive feedback for the muscle (Anatomy and Physiology 5th edition, K. Saladin). Wiki

Artery

Femoral artery.

The femoral artery (Latin: arteria femoralis) is a large artery in the thigh and the main arterial supply to the lower limb. It enters the thigh from behind the inguinal ligament as the common femoral artery, a continuation of the external iliac artery. Wiki

Antagonist muscles

Gluteus maximus, Adductor magnus (posterior part).

The adductor magnus is a large triangular muscle, consisting of two parts, situated on the medial side of the thigh. The Gluteus Maximus muscle, one in each buttock, moves the thigh.

Pictures of muscles

 

Trigger Point Referrals

 

Stretching description

 

Exercises

 

Injuries

 

Treatment

 

Additional Resources
Wiki
American Academy of Manual Medicine

Chandler Physical Therapy © 2014 Frontier Theme