human_reference_atlas part of has part blood vessel endothelial cell Homo sapiens maxillary artery artery posterior superior alveolar artery AS Wikipedia:Posterior_superior_alveolar_artery posterior superior alveolar artery uberon UBERON:0018397 superior posterior alveolar artery FMA:49757 posterior superior alveolar artery The posterior superior alveolar artery (posterior dental artery) is given off from the maxillary, frequently in conjunction with the infraorbital just as the trunk of the vessel is passing into the pterygopalatine fossa.