STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Tongue. Coloured light micrograph of a section through a tongue, showing its papillae (red). They project from the tongue's upper surface, giving it its rough texture. Taste buds are located between the papillae at the sides and base of the tongue. The rest of the tongue is mainly composed of muscle fibres (white and pink stripes, centre) that attach it to the mouth and enable it to move. Magnification: x2 when printed 10cm wide.
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