Henry Gray (1825–1861). Anatomy of the Human Body. 1918.
Tributaries.—The vertebral vein communicates with the transverse sinus by a vein which passes through the condyloid canal, when that canal exists.
FIG. 561– Diagram showing common arrangement of thyroid veins. (Kocher.) (See enlarged image)
FIG. 562– The fascia and middle thyroid veins. The veins here designated the inferior thyroid are called by Kocher the thyroidea ima. (Poirier and Charpy.) (See enlarged image)
It receives branches from the occipital vein and from the prevertebral muscles, from the internal and external vertebral venous plexuses, from the anterior vertebral
