It is formed by a confluence of the veins of the pterygoid plexus. It and passes posterior-ward between the sphenomandibular ligament and the neck of the mandible to enter the parotid gland where unites with the superficial temporal vein to form the retromandibular vein (posterior facial vein).
It is formed by the combination of the veins in the pterygoid network. Then, it moves posteriorly, positioned between the sphenomandibular ligament and the mandible's neck, to enter the parotid gland where it combines with the superficial temporal vein to form the retromandibular vein (posterior facial vein).