STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Salivary gland. Coloured light micrograph of a section through a sublingual salivary gland, which is situated directly under the tongue. The gland is divided into numerous lobules by stretches of connective tissue (white). The lobules contain secretory cells (purple, pink) that produce the main components of saliva, including mucous to lubricate the mouth and enzymes to break down carbohydrates when chewing food. Magnification: x200 when printed 10cm wide.
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