Filiform Papilla

First, let's define the etymology of the name. It is a type of filiform papilla (or filum terminale) that is of unclearly defined origin. Discovered for the first time in 1896 by the Austrian anatomist O. Pfister. Description given in the same year by Alfonso Alvarez Arcadios, a German veterinarian and anal canal specialist. The negligible width of the initial part of the canal opening is the key to the difference between ordinary filiform papillae and filiform papillae. Single filiform papillae have no more significant distinguishing features. Traditionally