604 



THE VEINS 



subclavian and innominate arteries, t<» its junetioii with tlie left vein l)fliind the 

 first costal cartilas^e close to the sternum. 



Relations. — In front (fig. 327) are the origins of the sterno-hyoid and sterno- 

 thvroid muscles, the clavicle, the first costal cartilage, and the remains of the 

 thymus gland. 



' Behind are the pleura and lung. 



To the right are the right pleura and lung, and the phrenic nerve. 



Fig. 381a. — The Vexa Cava Superior and 

 ;Froni a dissectiou iu St. Bartholomew's 



RIGHT RECrit- 

 REXT LARV.V- 

 GEAL XERVI-: 



Transverse cervical 

 artery 

 Right common carotid 



artery 

 Suprascapular artery 



Internal jugular vein 



PNEUMOGASTRIC 

 NERVE 



Subclavian vein 



Inferior thyroid vein 



PHREyiC NER VE 



Left innominate vein 



Ascending aorta 



Superior vena cava 

 RIGHT BRONCHUS 



Branch to superior lobi 

 of lung 

 Upper branch of right 

 pulmonary artery 

 Brunch lo middle lobe 



of lung 

 Right pulmonary vein 



RIGHT AURICLE 



Right coronary arter 

 Lower branch of rig hi 

 pulmonary artery 

 THORACIC VERTEBRA 



Intercostal vein 

 Intercostal artery 

 Vena azygos majot 



Intercostal vein 

 Intercostal artery 



Intercostal vein 

 Intercostal arti'ry 



THE InXOMIXATE VEIXS. 

 Hospital Museum. ) 



THYROID BODY 

 LEFT liE( VRREST 

 LARYNGEAL 

 NERVE 

 PNE I M O G A STRIC 



NER VE 

 Left internal jugular 



vein 

 Lfft common carotid 



artery 

 Left subclavian artery 



Left subclavian vein 



TRACHEA 



~ Inferior thyroid rein 



PHRENIC NER VE 



(hooked aside) 

 RECURRENT 

 LARYNGEAL 

 NERVE 

 PNE I MOGA S TRIC 



NERVE 

 DUCTUS ARTERIOSUS 



Left pulmonary artery 



Pulmonary artery 



Right pulmonary 

 artery 



LEFT BRONCHUS 



Left coronary artery 



Upper left pvlmonury 



vein 

 RIGHT VENTRICLE 



( ( 'on U.I arteriosus ) 

 Liiuer left pulmonary 



artery 

 Lower left pulmonary 



vein 

 ISOPHAGUS 

 (hooked aside) 



THORACIC DUCT 

 Thoriicic aiirtn 



To the left (fig. 381a) are tlie riglit subclavian artery, the innominate artery, 

 the right pneuiuogastric nerve, and the trachea. 



The left innominate vein {\\\f. 381a) measures two and a half to three inches 

 in length (G-7 cm.), and extends from its origin behind the sternal end of the left 

 clavicle obliquely across the three main branches of the arch of the aorta to unite 

 Avith the right innominate vein at the lower border of the cartilage of the first rib 

 close to the sternum to form the vena cava superior. In this course it runs from 

 left to right with an inclination downwai'ds and slightly backwards. A line drawn 

 obliquely across the upi)erhalf of the manubrium of the sternum, from the sterno- 



