Lymph Vessels of the Bones of the Head
The lymph vessels of the head bones (including the mandible) all drain to the mandibular lymph nodes, the parotid lymph node, and the medial retropharyngeal lymph node. The drainage of the individual bones are as follows: the lymph vessels of the incisive and maxillary bones drain to the mandibular lymph nodes, those of the occipital and sphenoid bones drain to the medial retropharyngeal lymph node, those of the nasal, frontal, and zygomatic bones drain to the parotid lymph node and medial retropharyngeal lymph node, and those of the mandible drain to the parotid lymph node, medial retropharyngeal lymph node, and the mandibular lymph nodes.