Make your rat dissection experience as easy-to-implement and impactful as possible by following this detailed three to four day dissection experience. *No prior learning is required prior to this dissection! I personally use this resource during the Mammals Unit in my Zoology course.Structures covered by the rat dissection: Abdominal cavity, anus, cecum, diaphragm, epididymis, esophagus, fat bodies, greater omentum, heart, incisors, kidneys, large intestine, liver, lungs, mesentery, nictitating