What is the name of the vertical groove above the upper lip that connects the top lip to the bottom of the nose?
Lip is called the vermilion zone. The vermilion border of the upper lip is known as the cupid's bow. The fleshy protuberance located in the center of the upper lip is a tubercle known by various terms including the procheilon (also spelled "prochilon"), the "tuberculum labii superioris", and the "labial tubercle". The vertical groove extending from the procheilon to the nasal septum is called the philtrum. The skin of the lip, with three to five cellular layers, is very thin compared to typical face skin, which has up to 16 layers. With light skin color, the lip skin contains fewer melanocytes
Stiff upper lip Stiff upper lip A person who is said to have a stiff upper lip displays fortitude and stoicism in the face of adversity, or exercises great self-restraint in the expression of emotion. The phrase is most commonly heard as part of the idiom "keep a stiff upper lip", and has traditionally been used to describe an attribute of British people in remaining resolute and unemotional when faced with adversity. A sign of weakness is trembling of the upper lip, hence the saying keep a stiff upper lip. When a person's upper lip begins to tremble, it is one of the