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Cupid's bow feature of a human lip. The upper and lower lips are referred to as the labium superius oris and labium inferius oris, respectively. [2] [3] The juncture where the lips meet the surrounding skin of the mouth area is the vermilion border, [4] and the typically reddish area within the borders is called the vermilion zone. [5]
Meaning Origin language and etymology Example(s) labi-of or pertaining to the lip: Latin labia, labium, lip labiodental: lacrim(o)-tear: Latin lacrima, tear from crying Lacrimal canaliculi: lact(i)-, lact(o) milk: Latin lac, milk lactation, lactose: lapar(o)-of or pertaining to the abdominal wall, flank Greek λαπάρα (lapára), flank ...
The lips are composed wholly of soft tissue. The skin of the face is thicker than the skin overlying the lips where blood vessels are closer to the surface. As a consequence, the margin of the lips shows a transition between the thicker and thinner skin, represented by the vermilion border.
While primary aspects of the voice are produced in the throat, the tongue, lips, and jaw are also needed to produce the range of sounds included in speech. The mouth consists of two regions, the vestibule and the oral cavity proper. The mouth, normally moist, is lined with a mucous membrane, and contains the teeth.
Cleft lip is about twice as common in males as females, while cleft palate without cleft lip is more common in females. [2] In 2017, it resulted in about 3,800 deaths globally, down from 14,600 deaths in 1990. [3] [4] Cleft lips are commonly known as hare-lips because of their resemblance to the lips of hares or rabbits. [5]
The commissure is the corner of the mouth, where the vermillion border of the superior labium (upper lip) meets that of the inferior labium (lower lip). The commissure is important in facial appearance, particularly during some functions, including smiling. As such it is of interest to dental surgeons.
Cheilitis also called and known as chapped lips, is a medical condition characterized by inflammation of the lips. The inflammation may include the perioral skin (the skin around the mouth), the vermilion border , or the labial mucosa . [ 1 ]
The philtrum (Latin: philtrum from Ancient Greek φίλτρον phíltron, lit. "love charm" [2]) or medial cleft is a vertical indentation in the middle area of the upper lip, common to therian mammals, extending in humans from the nasal septum to the tubercle of the upper lip.