Upper lip
Labium superius
Definition
The upper lip corresponds to the upper part of the lips. It joins the lower lip by a corner defining the angle of the mouth. It is crossed in the middle by a vertical median furrow, the philtrum.
References
Barone R, Anatomie comparée des mammifères domestiques, Tome 3, Splanchnologie I, 4th edition, Vigot, 2017
