This video shows precisely what a surgeon sees during a laparoscopic cholescystectomy. A laparoscopic cholescystectomy is gallbladder removal surgery using small incisions and cameras rather than a large abdominal incision. This video may be difficult for some viewers since it shows surgery on actual human tissue.

An artist's rendition of the body at the microscopic level is narrated in this video. It describes how bacteria enter the body during an infection and how the cells of the immune system mount an organized attack to fight the infection.

The narrated 3D animations shows the function of the gallbladder and explains how gallstones can be formed from cholesterol and bile salts. If gall stones block the outflow of bile from the gallbladder, a cholecystectomy (gallbladder removal) may need to be performed.

Type 2 diabetes, when poorly controlled, can directly damage several organs and tissues like the kidney, the retina of the eye, and the nerves. Type 2 diabetes also leads to increased risk of heart disease and arterial disease and makes it harder for wounds to heal (delays healing).