Final answer:
The Gracilis muscle acts as a synergist to the lateral rotators during lateral rotation. The lateral rotators include muscles such as the piriformis, obturator internus, obturator externus, superior gemellus, inferior gemellus, and quadratus femoris.
Step-by-step explanation:
The Gracilis is a synergist to the lateral rotators during lateral rotation. The lateral rotators of the femur at the hip include muscles such as the piriformis, obturator internus, obturator externus, superior gemellus, inferior gemellus, and quadratus femoris. These muscles work together to rotate the femur outward and help with maintaining posture.