Definition of principal for English Language Learners. : 1  the person in charge of a public school. : 2  the person in charge of a university or college. : 3  an amount of money that is put in a bank or lent to someone and that can earn interest.
A quadriceps contusion is one of the more common injuries seen in athletes competing in contact sports and results from a direct blow to the front of the thigh.This type of injury often goes undertreated and may result in serious complications for the athlete.ecause of the location of the quadriceps, they can be subject to direct blows during sports competition. A deep quadriceps contusion can be one of the most disabling injuries for an athlete because injury to these muscles can severely impact an athleteâs ability to effectively use his/her leg.
Quadriceps. Quadriceps, 4.3 out of 5 based on 5 ratings. The Quadriceps Femurs which derives itâs name from the Latin, meaning four headed muscle of the femur can be subdivided into four muscles or heads. These are the Vastus Intermedius, the Vastus Lateralis, the Vastus medialis and the Rectus Femoris. The Rectus Femoris muscle is the fourth muscle making up the Quadraceps occupying the middle of the thigh covering most of the other three muscles making up the quadriceps. 2  It has two tendons with origin attachment points from the anterior inferior iliac spine as well as from just above the Acetabulum.