The anterior compartment is a section of the human body, specifically in the limbs, that contains muscles and structures responsible for specific movements. In the arm, it primarily includes the biceps brachii and brachialis muscles, which are involved in flexing the elbow. In the thigh, the anterior compartment houses the quadriceps femoris muscle group, crucial for extending the knee. This compartment is separated from other compartments by connective tissue and fascia, which helps organize the muscles and nerves. The anterior compartment is supplied by specific blood vessels and nerves, such as the femoral nerve in the thigh, ensuring proper function and movement.