Medial Thigh

Exam 1

this region is about:

• adducting the hip

• stabilizing the knee joint

-Good for quick cutitng

Muscles of the medial thigh function, originate, insert

Function: muscles adduct, and medially rotate the hip

Originate: the inferior pubic ramus or the ischiopubic

Insert: into the medial aspect of the femoral shaft

The medial thigh is innervated by what?

obturator n.

Where are these muscles seen?

- these muscles are particularly important to various athletes

- Equestrian!

- Sports that require explosive starts and quick cutting

-Soccer, ice hockey

Muscles of medial thigh

• adductor longus m.

• adductor brevis m.

• adductor magnus m.

• gracilis m.

adductor longus m.

most often involved in a “pulled groin”

adductor brevis m

deep to pectineus and adductor longus mm

adductor magnus m.

• attached to the medial part of the femur

• most strength in medial rotation and adduction

• Critical to stabilizing the hip

gracilis m.

as medial as you can go

I: pes anserinus

- between sartorius and semitendinosus mm.

F: adducts and medially rotates hip, flexes knee

• part of the tendon may be harvested in an ACL autograph

Athletic Pubalgia

Also called (“sports hernia”)

– persistent groin pain related to overuse/inflammation of adductor muscles

- pain typically presents in the groin region, where the medial thigh muscles

originate

Obturator artery

- branch of internal iliac a.

- exits pelvis through the obturator canal

- supplies some of the adductors and supplies hip joint

Obturator n.

- branch of lumbosacral plexus

- exits pelvis via obturator canal

- innervates adductor muscles

-supplied motor fibers

Femoral triangle

• space of anterior thigh which transmits all neurovascular structures to

anteromedial thigh

• it is superficial and common to injuries

borders:

superior = inguinal lig.

medial - lateral border of adductor longus m

Lateral - medial border of sartorius m.

contents: (lateral to medial) femoral n., femoral a., femoral v., empty space

“open chain”

means that the distal segment of the limb is free (in this case, the foot

closed chain

means that the distal segment of the limb is fixed to the ground

What does open chain knee extension look like?

What does closed chain knee extension look like?