The life-size human digestive system from the mouth cavity to the rectum makes a great teaching and demonstration model, and is ideal for students, teachers, and medical professionals Observation of internal organs can easily be done through openings in the stomach, the duodenum, caecum, and rectum The transverse colon is removable for closer observation Life-size digestive system includes over 50 labeled anatomical features with accompanying manual that provides quick identification of the part Constructed from durable PVC