Learner's definition of FAMILIARITY. [noncount] 1. : the state of being familiar with something : the state of having knowledge about something â usually + with. His familiarity with local issues helped him during the campaign. The job requires familiarity with current software.
Vastus lateralis. The vastus lateralis muscle is located on the side of the thigh. This muscle is the largest of the quadriceps group (often called quads) which also includes the rectus femoris, the vastus intermedius, and the vastus medialis.
Vastus lateralis. -M. Vastus intermedius. The rectus femoris originates at the ilium, it is the only muscle that is participating in both functions; flexion of the hip and extension of the knee. The other three parts are only involved in the extension of the knee.