Human 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.Request/Download high-res file Uncompressed file size: 51.4MB Downloadable file size: 1.7MB
Credit: Clouds HIll Imaging LTD. This image shows the surface of the human tongue via a colored scanning electron micrograph (SEM). Covering the tongue's surface are scale-like projections called filiform papillae, which sense pressure. The round areas (purple) are fungiform papillae, which contain the taste buds.