718 



THE VASCULAR SYSTEMS 



The superior thyroid vein (v. thyreoidea superioris) (Fig. 497) commences in the 

 substance and on the surface of the thyroid gland by tributaries corresponding 



FIG. 498. Diagram showing common arrangement of thyroid veins. (Kocher.) 



INFERIOR 



THYROID 



VEIN 



INFERIOR 

 THYROID 

 VEIN 



FIG. 499. The fascia and middle thyroid veins. The veins here designated the inferior thyroid are called by 

 Kocher the thyreoidea ima. tPoirier and Charpy.) 



with the branches of the superior thyroid artery, and terminates in the upper 

 part of the internal jugular vein. It receives the superior laryngeal and crico- 

 thyroid veins. 



