/'/// THOR.IX. 



217 



mon carotid and left subclavian veins, and (5) pericardium. Find (6) the vena 

 a/ygos major to tlu- right, and (?) the aorta to the left. On each side find (8) 

 the pneumogastric nerves. Near the diaphragm find (9) the left pn<-um< gastric 

 in front, (10) the right behind the o-sophagus a result of rotation of the stomach. 

 The pneumogastric nerves (Kig. 153) have been thoroughly considered in 

 the dissection of the neck. Still, there are some practical relations of this nerve 



Rinirr ni:m; 



. 



Hl'l.iL .V/.7.M 'A 1 

 Tran. 



cinittnim carotid 



in i'Tii 



i- niii HI 



Inl'-rnal j'l'jiilnr IT//I 



.WV.'l V 

 Subclavian vein 



Inferior thyroid vein 

 PHRENIC NERVE 



Lfft intionii 



Ascending anrtu 



Sitjterior rena -<nn 



RIGHT BRONCHUS 



Branch to suite rim- /'"f" 



of lung 

 I'pptr branch of right 



fi/tltrt'iiuit'if nr/i'/'f/ 



Branch to mi-: 

 of I n in i 



vein 



THYROID BODY 



I, I /M.\/./.J/, 



VBRV& 



I'M-! MOGASTR1C 



NSRVB 



Left inlenmf j uvular 



1YIX 



Ltfft common carotid 



artery 

 Left tiibclut inn artery 



Lejl subclavian rein 



TRACHEA 



Inferior thyroid vein 



PHRENIC NKRVE 



RIGHT AURICLE 



Riyht coronary artery 

 I.iiti^r branch of right 



finhntuKini ni-t'-ru 

 THORACIC VERTEBRA 



Intercostal vein 

 Intercom fn? arfenj 

 Vena azygos major 



Intercostal vein 

 Intercostal artery 



Intercostal rein 

 Intercostal artery 



FIG. 153. THE ARCH OF THE AORTA, *\vmi THK 



THE AOK i A. 



RECURRENT 

 LARYKGEAL 

 NERVE 



I'M t -Mm;. \STR1C 

 SERVE 



DUCTUS ARIER10SUS 



ulmonary artery 



Pulmonary artery 



Right jmlmonary 

 artery 



LEFT BRONCHUS 



Lfft coronary artery 



Upper left pulmonary 



vein 

 RIGHT VENTRICLE 



(f.'onw* artrrioMs) 

 I.tiiri / lr ft jiuluutjinry 



artfry 

 Lower left ptilmoiiary 



vein 



(ESOPHAGUS 

 (hooked aside) 



THORACIC DUCT 

 Thoracic aorta 



ARTERY AND CHIEF KRANCHKS OK 

 (Krom a dissection in St. Hartholomew's Hospital Museum.) 



in the thorax I wish the student to understand. The pneumogastric nerve 

 leaves the cranium by the jugular foramen. You found it in the carotid sheath, 

 between the internal jugular vein and common carotid artery in the neck. The 

 two pneumogastric nerves differ in their relations somewhat, hence dissect them 

 v.-parately. The right ncri'c (Fig. 153) crosses the right subclavian artery, and 

 at once gives off its recurrent or inferior laryngeal nerve, which passes upward 

 and inward, behind the subclavian and common carotid arteries, to the larynx, 



