This document describes several muscles and muscle groups in the lower body. It outlines the gluteus maximus, medius, and minimus muscles and their attachments. It also describes the quadriceps femoris group including the vastus intermedius, medialis, lateralis, and rectus femoris muscles. Additionally, it mentions the hamstring muscles and sartorius. The document provides an overview of the major blood vessels and nerves that serve the lower body muscles.