ANATOMY, UNSOUNDNESS, AND AGE OF A HORSE 35 



ischium; and good examples of irregular bones are those 

 of the knee — scaphoid, lunar and the like. (Fig. i8.) 



Cartilage.— This is a strong, flexible, bluish-white sub- 

 stance, which is found in connection with bone and of 



1. Incisor teeth 



2. Molar teeth 



3. Lower Jaw 



4. Cervical vertebra 



5. Dorsal vertebra 



6. Lumbar vertebra 



7. Sacral vertebra 



8. Caudal vertebra 



9. Sternal ribs 



10. Asternal ribs 



11. Sternal cartilages 



12. Asternal cartilages 



13. Sternum 



14. Scapula 



FIG. 18.— SKELETON OF THE HORSE 



15. Humerus 



16. Ulna 



17. Radius 



18. Carpus, 7 bones 



19. large metacarpus 



20. Small metacarpus 

 31. Sesmoids 



22. Os suffraginis 



23. Os coronae 



24. Os pedis 



25. Navicular 



26. Ilium 



27. Ischium 



28. Pubis 



29. Femur 



30. Patella 



31. Fibula 



32. Tibia 



33. Tarsus, 6 bones 



34. Large metatarsus 



35. Small metatarsus 



36. Sesmoids 



37. Os suffraginis 

 3S. O^ coronea 



39. Os pedis 



40. Navicular 



which there are various kinds such as articular, tem- 

 porary, prolongation and the like. Articular cartilage 

 covers the ends of bones that form movable joints ; tem- 

 porary cartilage is bone in transition form ; and prolonga- 

 tion cartilage forms an elastic continuation of the top of 

 the shoulder blade. 



