vastus medialis (muscle)
vas·tus me·di·a·lis (mus·cle)[TA]
medial head of quadriceps muscle of anterior (extensor) compartment of thigh; origin, medial lip of linea aspera; insertion, tibial tuberosity by way of common tendon of quadriceps femoris and ligamentum patellae; action, extends leg; nerve supply, femoral.
Synonym(s): musculus vastus medialis [TA], medial great muscle, medial vastus (muscle), musculus vastus internus
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