

THE VEINS OF THE THORAX 



665 



of the first rib, close to the right border of the sternum, to form the superior vena 

 cava. It lies in front and to the right of the innominate artery; on its right side 



Anterior jugular 



Superior thyroid - 



Middle 

 thyroid A 



External jugular 



Suprarenal 



Suprarenal 



FIG. 577. The venae cavse and azygos veins, with their tributaries. 



are the phrenic nerve and the pleura, which are interposed between it and the apex 

 of the lung. This vein, at its commencement, receives the right vertebral vein; and, 



