vastus lateralis muscle


vas·tus lat·er·a·lis mus·cle

(vas'tŭs lat-ĕr-ā'lis mŭs'ĕl) Origin, lateral lip of linea aspera as far as great trochanter; insertion, tibial tuberosity by way of common tendon of quadriceps femoris and patellar ligament; action, extends leg; nerve supply, femoral.
Synonym(s): lateral vastus muscle.

vastus lateralis muscle

Thigh muscle. Origin: lateral side of proximal femur. Insertion: common tendon of quadratus muscles, tibial tuberosity via patellar ligament. Nerve: femoral (L2-L4). Action: extends leg. See: leg for illus. (Muscles of the leg)See also: muscle