False-colour SEM of filiform papillae and bacteria

False-colour SEM of filiform papillae and bacteria

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Credit: PROF. P. MOTTA/DEPT. OF ANATOMY/UNIVERSITY "LA SAPIENZA", ROME/SCIENCE PHOTO LIBRARY

Caption: False-colour scanning electron micrograph (SEM) of filiform papillae on the surface of the tongue. Filiform papillae, also known as conical papillae, are covered by stratified squamous epithelial cells apart from their tips which are formed by the fibrous protein keratin in order to increase the papillae's strength. Filiform papillae have mechanical and tactile functions. They form a rough surface which helps the mastication process. Each papilla contains nerve endings which transmit tactile information to the brain. At centre green coloured bacteria are also visible. Magnification: x925 at 6x7cm size. Magnification: x1360 at 4x5 inch size size.

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Keywords: anatomy, bacteria, conical papilla, epithelium, false-coloured, filiform, filiform papilla, human body, papilla, squamous stratified epithelium, stratified squamou, tongue

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