VISCERAL ANATOMY. 



137 



FIG. 23. 



THE RESPIRATORY 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; n, 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, (Esophagus. 



10 



