<prompt> Posterior superior alveolar aery is a branch of:Nasal branch of maxillary aeryPalatal branch of maxillary aeryMandibular aeryInferior alveolar aery  <response>: Posterior superior alveolar aery arises from third pa of maxillary aery just before it enters the pterygomaxillary fissure. BRANCHES OF MAXILLARY AERY 