Tongue surface. Colored scanning electron micrograph (SEM) of the surface of the tongue. The pattern of tiny surface projections (papillae) is seen here. By far the more numerous are filiform papillae (brown), also known as conical papillae, which have mechanical and tactile (touch) functions. These papillae also form a rough surface which helps in the chewing and manipulation of food. Fungiform papillae (round, red) are less numerous and are well supplied with blood; they contain taste buds under their surface, thus playing a sensory role. Magnification x94 at 5x7cm size. x47 at 35mm size.
March 7th, 2013
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