VISCERAL ANATOMY. 

 FtG. 23. 



137 



THE RESPIRA.TORY ORGANS; INFERIOR, OR FRONT VIEW. 



Trachea; 2, Jugular vein; 3, Great rectus anticus muscle; 4, Carotid artery; 5, Longus colli 

 muscle; 6, Origin of the common carotids; 7, Vertebral artery; 8, Section of first rib; 9, 

 Cephalic trunk of right axillary artery; 10, Anterior lobe of right lung; 11, Middle,' or 

 supplementary lobe of ditto; 12, Posterior portion or lobe of ditto; 13, Heart; 14, Cardiac 

 artery; 15, Ventricular branch of cardiac vein; 16, CEsophagus. 



10 



