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49.9 MB (4.7 MB compressed)
5079 x 3431 pixels
42.9 x 29.0 cm ⏐ 16.9 x 11.4 in (300dpi)
ASTRID & HANNS-FRIEDER MICHLER / SCIENCE PHOTO LIBRARY ASTRID & HANNS-FRIEDER MICHLER / SCIENCE PHOTO LIBRARY
Taste buds on the tongue. Light micrograph of a section through four papillae on the surface of the tongue, showing taste buds. Each papilla is covered with a squamous epithelium many cell layers thick (purple) and hardened with keratin. In the cleft on the side of each papilla, can be seen taste buds which resemble fans of elongated cells. Each taste bud opens onto the surface through an aperture, the gustatory pore, visible as a dark area (base of each fan of cells). Taste buds contain gustatory sensory cells and serve to detect sweet, salty, sour, or bitter chemicals. Magnification: x50 at 35mm size.
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