Scanning electron micrograph of rat colon mucosa goblet cells. Image made available by James D. Jamieson and the Department of Cell Biology, Yale University School of Medicine.

Colorized transmission electron micrograph of goblet cells packed full of mucous globules (blue). The cells release the globules to provide lubrication and protection to the inner surfaces of the int...

Confocal image of colonic crypts in cross section. Mucin cells (yellow) in the crypts produce mucous which passes into the interior of the colon through the crypt lumen (the white spots in the centres...