51.4 MB (1.4 MB compressed)
4075 x 4406 pixels
34.5 x 37.3 cm ⏐ 13.6 x 14.7 in (300dpi)
SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
Mammalian tongue surface, coloured scanning electron micrograph (SEM). The tongue is covered in many backward facing projections called filiform papillae, which sense pressure. The papillae have a scaly appearance because they are constantly shedding their top layer of skin.
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