Final answer:
The quadriceps femoris group includes the Vastus medialis, Rectus femoris, Vastus intermedius, and Vastus lateralis. The muscle not located in the posterior pelvis region is the Rectus femoris.
Step-by-step explanation:
The muscles that make up the quadriceps femoris group are the Vastus medialis, Rectus femoris, Vastus intermedius, and Vastus lateralis. These muscles are located in the anterior thigh and are responsible for extending the leg at the knee joint. They work together to straighten the leg and provide power for activities like running and jumping.
The muscle that is not located in the posterior pelvis region is the Rectus femoris. It is actually part of the quadriceps femoris group and is located in the anterior thigh. It is the only muscle of the quadriceps group that crosses both the hip and knee joints, making it unique in its function.
Learn more about Muscles of the lower body