Chin
At the human being, the chin (of Latin mentum ) is the projecting member of the face located under the Bouche. Constituting the prolongation of the Jaw, it is more or less marked according to the individuals. In spite of these important morphological variations, he is always regarded as projecting at the modern Homme, except pathological cases.
The voluntary movement of projection mentonière is ensured by the end of the sub-unit corporéale of the bone mandibulaire and by the levator muscle of the chin (also named bunch of the lower chin or incisive). This small muscle is a muscle fiber beam conoïdes, established each side of the symphyse of the chin with the level of the Incisive S. It makes it possible to raise the skin by wrinkling it. The cutaneous sensitivity is ensured by the V3 branch of the nerve Trijumeau passing via the oval foramen.
External bonds
Study of the chin to the dental anatomy in XVIe century: a study on the characterization of the chin in the kind Homo and the European history.
Simple: Chin
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