Expected headings
"Terminology"
"internal canal: smaller, medial, containing chorda tympani; also known as canal of Huguier, anterior canaliculus for chorda tympani, anterior tympanic aperture, or iter chordae anterius 5"
"The structure is named after Swiss anatomist Johann Heinrich Glaser (1629-1675), who did not actually describe this fissure but rather described the split part of the tympanic ring that connects the tympanic cavity with the external auditory canal 4. The fissure was probably first described by Joseph Guichard Duverney (1648-1730) around the same time, in the late 1600s, and then eponymically misassociated by others with Glaser in the mid-1700s 4. The eponym was popular enough that it became used as an adjective without capitalisation (glaserian), similar to eustachian or fallopian 4,5. The term "petrotympanic fissure" was not used until Jakob Henle (1809-1885) named it in 1855 4."