EXPLANATION OF PLATE V. 



Blood- Vascular System of the Horse. 



L 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. Dor.sal artery. 



11. Superior cervical artery. 



12. Vertebral artery. 



12'. Internal thoracic artery. 



13. Humeral artery. 



14. Eadial artery. 

 14'. Cubital artery. 



15. Great metacarpal artery. 



16. Ungual branches. 



17. Posterior aorta. 



18. Coeliac 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 arter^^ 



27. Femoral artery. 



28. Posterior tibial artery. 

 28'. Anterior tibial artery. 

 28". Fenioro-popliteal arterj'. 



29. Metatarsal vessels. 



30. Venous plexus of the foot. 



31. Internal saphenic vein. 



32. Cephalic vein. 

 23. Jugular vein. 



