Veins of the ear
Blood vessels
The veins of the vestibule and semicircular canals accompany the arteries, and, receiving those of the cochlea at the base of the modiolus, unite to form the internal auditory veins (or veins of labyrinth) which end in the posterior part of the superior petrosal sinus or in the transverse sinus.
References
This article incorporates text in the public domain from page 1059 of the 20th edition of Gray's Anatomy (1918)