The quadriceps are located in which region of the body?

• A. Posterior thigh muscles
• B. Anterior thigh muscles
• C. Calf muscles
• D. Shoulder muscles

Answer: (B)

The essential idea here is where the muscle group sits on the body. The quadriceps are a group of four muscles that lie on the front of the thigh, in the anterior thigh region. Their location in the front of the leg is why they’re described as anterior thigh muscles and they mainly extend the knee. In contrast, the posterior thigh houses the hamstrings (back of the thigh), the calf muscles are in the lower leg, and shoulder muscles are up at the upper body near the shoulder. So, the quadriceps are best described as located in the anterior thigh region.