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Asterion (anatomy) : ウィキペディア英語版 | Asterion (anatomy)
The asterion is the point on the skull corresponding to the posterior end of the parietomastoid suture. ==Location== In human anatomy, the asterion is a visible, so-called craniometric, point on the exposed skull, just behind the ear, where three cranial sutures meet: * the lambdoid, * parieto-mastoid, and * occipito-mastoid sutures, or where three cranial bones meet: * Parietal bone, * Occipital bone, * and Mastoid portion of the Temporal bone. In the adult, it lies 4 cm behind and 12 mm above the center of the entrance to the ear canal.
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