This paper is the second part of the study devoted to the equine masticatory organ. The masticatory organ is a morphological-functional unit associated primarily with the digestive system. It includes the teeth (described in part 1); parodontium (described in the present paper); oral mucosa, maxilla and mandible as well as some of the viscerocranial bones (the temporal and zygomatic bones). temporo-mandibular joints, muscles and oral glands. The parodontium as a part of the masticatory organ can be divided into the marginal parodontium and the apical parodontium. The marginal parodontium (parodontium marginale) involves the adjoining tissues in the region of the body of a tooth: the gingivae, periodontium, periosteum and the alveolar bones. The apical parodontium (parodontium apicale) also includes the radical cementum, despite the fact that it builds a tooth.
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