HERVE CONGE, ISM / SCIENCE PHOTO LIBRARY HERVE CONGE, ISM / SCIENCE PHOTO LIBRARY
Salivary gland. Light micrograph of a section through a salivary gland showing secretory cells. These cells produce the main components of saliva, including mucous to lubricate the mouth and enzymes to break down carbohydrates when chewing food. Magnification: x280 when printed at 10 centimetres wide.
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