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Vastus Medialis Muscle

ORIGIN AND INSERTION

Vastus medialis originates from medial lip of linea aspera and intertrochanteric line of femur. The insertion of this muscle is onto the base of patella via common tendinous attachments (quadriceps tendons). It also attaches distally to the tibial tuberosity by patellar ligament.

 

NERVE SUPPLY

Femoral nerve (L2, L3, and L4) is the source of nervous supply to this muscle through muscular branches that penetrate and innervate the muscle.

 

BLOOD SUPPLY

Vastus medialis is supplied arterially by femoral artery, superior medial genicular branch of popliteal artery and profunda femoris artery.

 

FUNCTIONS

It plays important role in extending the leg at the knee joint. It also supports the extended leg to make it steady and stable.

 


ORIGIN AND INSERTION

Vastus medialis originates from medial lip of linea aspera and intertrochanteric line of femur. The insertion of this muscle is onto the base of patella via common tendinous attachments (quadriceps tendons). It also attaches distally to the tibial tuberosity by patellar ligament.

 

NERVE SUPPLY

Femoral nerve (L2, L3, and L4) is the source of nervous supply to this muscle through muscular branches that penetrate and innervate the muscle.

 

BLOOD SUPPLY

Vastus medialis is supplied arterially by femoral artery, superior medial genicular branch of popliteal artery and profunda femoris artery.

 

FUNCTIONS

It plays important role in extending the leg at the knee joint. It also supports the extended leg to make it steady and stable.

 

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