Abstract
The course, origin and ramification of the posterior deep temporal artery of the crab-eating monkey were studied by the acryl plastic injection method. The artery arose from the maxillary artery distal to the points of origin of the inferior alveolar and the middle meningeal arteries in all examples observed. The branches of the artery were: the anterior branch, the lateral pterygoid branch, the masseteric artery, the temporal lateral and the temporal crestal branch. These supplied the masticatory muscles except for the medial pterygoid muscle. In particular, the distribution territories of these branches were described according to the lamination of the masseter muscle (see Table 1). The artery terminated in the superior, the superoposterior and the posterior branches in the temporal muscle. The lingual branch arose from the maxillary artery near the origin of the posterior deep temporal artery in all examples, and supplied the oral mucosa behind the lower molar teeth, their lingual gingivae and the posterior margin of the mylohyoid muscle and the masticatory muscles except for the masseter.
