Cavernous sinusin cranial cavityEmissary veinsInfra-orbitalartery and veinPosterior superior alveolarartery and veinAnterior superior alveolarartery and veinInferior alveolar artery andvein in mandibular canalFacial veinInternal jugular veinExternal jugular veinExternal carotid arteryPterygoid plexus of veinsRetromandibular veinMaxillary veinMaxillary artery