牙舌解剖 3D模型

This is a 3d model of a Human Teeth, Gums and Tongue Anatomy. Complete with color map and bump maps. Additional Information: The tongue, situated in the floor of the mouth, is attached by muscles to the hyoid bone, mandible, styloid processes, and pharynx. The sulcus terminal is the boundary between the oral part, or anterior two thirds, and the pharyngeal part, or posterior third, of the tongue. The foramen cecum, when present, indicates the site of origin of the embryonic thyroglossal duct. The roots of the upper molars are closely related to the floor of the maxillary sinus. Hence pulpal infection may cause sinusitis, or sinusitis may cause toothache.