EXPLANATION OF PLATE V. 



BLOOD- VASCULAR SYSTEM OF THE HORSE. 



1. Heart, right ventricle. 



2. Heart, left ventricle. 



3. Heart, left auricle. 



4. Pulmonary artery. 



5. Pulmonary veins. 



6. Anterior aorta. 



7. Carotid artery. 



8 8. Glosso-facial artery. 

 9. Left brachial artery. 



10. Dorsal artery. 



11. Superior cervical artery. 



12. Vertebral artery. 



12'. Internal thoracic artery. 



13. Humeral artery. 



14. Radial artery. 

 14'. Cubital artery. 



15. Great metacarpal artery. 



16. Ungual branches. 



17. Posterior aorta. 



18. Cceliac axis. 



19. Mesenteric arteries. 



20. Renal artery (left). 



21. Small testicular artery. 

 22. Posterior vena cava. 



23. Portal vein. 



23'. Hepatic circulation. 



24. External iliac artery. 



25. Internal iliac artery. 



26. Lateral sacral artery. 



27. Femoral artery. 



28. Posterior tibial artery. 

 28'. Anterior tibial artery. 

 28". Femoro-popliteal artery. 



29. Metatarsal vessels. 



30. Venous plexus of the foot. 



31. Internal saphenic vein. 



32. Cephalic vein. 



33. Jugular vein. 



