Lip - Definition


Lips are the external part of the mouth. They include an upper and a lower lip, and are responsible for enabling articulation and moving food around the oral cavity. This opening is made up of a versatile sphincter muscle, meaning the lips can adopt a multitude of different forms. Furthermore, the term "lip" can also be used to refer to the edges of a wound and the cutaneous folds of the vulva. In this last case, the lips are categorized as small and large, or more often referred to as the labia.
Original article published by Jeff. Translated by Jeff. Latest update on November 26, 2013 at 12:52 PM by Jeff.
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