Dr. Ebraheim’s educational animated video teaches the anatomy of the Gracilis muscle with simple images, this video also provides you with all you need to know about this muscle, its innervation, action, and function.
Gracilis is the most superficial muscle on the medial side of the thigh.
Its tendon can be easily palpable in the inguinal region, together with the adductor longus muscle.
The medial side of the thigh contains the adductor group of muscles which help in crossing of the legs and balances the pelvis while walking and standing.
Gracilis is the only adductor muscle that crosses 2 joints.
This thin long muscle provides a reliable coverage.
It is one of the most common donor muscles for free muscle transfer procedures.
Origin: from the outer surface of the ischiopubic ramus.
Insertion: in the upper medial part of the tibial shaft below the sartorious muscle.
This area is called the pis anserine, and will have the Gracilis, Sartorius, and the Semitendinosis.
Innervation: the anterior branch of the obturator nerve.
The Oturator nerve arises from the lumbar plexus L2-L3-L4.
Then the nerve passes through the obturator foramen to reach the adductor muscles.
Function: it adducts the hip, flexes and internally rotates the knee.

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