EXPLANATION OF PLATE IV. 



DIGESTIVE APPARATUS OF THE HORSE. 



1. Mouth. 



2. Pharynx. 



3. (Esophagus. 



4. Diaphragm. 



5. Spleen. 



G. Stomach (left sac). 



7. Duodenum. 



8. Liver (upper extremity). 



9. Great colon. 



10. Csecum. 



11. Small intestine. 



12. Floating colon. 



13. Rectum. 



14. Anus. 



15. Left kidney and ureter. 



16. Bladder. 



17. Urethra. 



a. Hard palate. 

 6. Tongue. 



c. Soft palate. 



d. Trachea. 



e. Pulmonary artery (divided). 

 /. Heart. 



g. Posterior aorta. 



