http://www.nucleusinc.com/medical-animation This 3D medical animation shows a minimally invasive gallbladder removal surgery, or cholecystectomy. The animation begins by showing the normal anatomy of the liver and gallbladder. Over time, gallstones form within the gallbladder, blocking the cystic duct, and causing the gallbladder to become enlarged and inflamed. This minimally invasive procedure (MIP), sometimes called a "lap chole", begins with the insertion of four trocar devices, allowing the physician to see inside the abdomen without making a large incision. Air is added to the abdominal cavity to make it easier to see the gall bladder. Next, we see a view through the laparoscope, showing two surgical instruments grasping the gallbladder while a third severs the cystic duct. After the gall bladder is removed, the camera pans around to show that the cystic artery and vein, have already been clipped to prevent bleeding.