[venous] The pharyngeal veins begin in the pharyngeal plexus on the outer surface of the pharynx, and, after receiving some posterior meningeal veins and the vein of the pterygoid canal, end in the internal jugular. ...
Found on
http://en.wikipedia.org/wiki/Pharyngeal_plexus_(venous)

The plexus of nerves including branches of the glossopharyngeal, vagus, and accessory nerves (cranial root), that lies along the posterior wall of the pharynx, a venous plexus on the posteriolateral walls of the pharynx, emptying through the pharyngeal veins into the internal jugular. ... Synonym: plexus pharyngeus. ... (05 Mar 2000) ...
Found on
http://www.encyclo.co.uk/local/20973
No exact match found.