Deluxe Muscle Leg, Life Size, 7-Part Leg muscular leg model can be disassembled into upper and lower leg. The following muscles can be detached from the muscular leg: Long head of biceps femoris muscle with semitendinous muscle. Sartorius muscle, Gluteus maximus muscle, Rectus femoris muscle, Gastrocnemius muscle. This high quality muscular leg model is supplied on base. Now included with all 3B Scientific Anatomy models is the 3B Smart Anatomy app. This app allows users to register their 3B item to extend the warranty from 3 to 5 years plus free 1 year access to the 3B Smart Anatomy app which includes 23 Anatomy lectures, 117 interactive models and 39 quizzes.