B 



Plate XX. 



A. — BURS.E AND SHEATHS IN RELATION TO THE BONES (sEMI-SCHEMATIc) 



I. Summit of great trochanter. 2 Innominate bone. 3. Femur. 4. Bursa on outer surface of convexity. 5, Bursa 

 on front of patella. 6. Sheath of common tendon of extensor pedis and superficial division of fie.xor metatarsi. 

 7 and 10. Bursa between tendons of flexor perforatus and gastrocnemius. 8. Tibia, g and 12. Bursa between per- 

 foratus tendon and skin. 11. Os calcis. 13. Sheath of tendon of peroneus muscle. 14. Sheath of tendon of flexor 

 perforans. 15. Sesamoid bone. 16. Bursa beneath cunean tendon. 17. Os coronas. 18. Large metatarsal bone. 

 20. Os suffraginis. 22. Os pedis. 



B. — LEFT HOCK — INNEK ASPECT, SHOWING SHEATHS AND BURS.E DISTENDED 



I. Tibia. 2. Superior dilatation of sheatb of flexor perforans tendon (tendinous thoroughpin). 3. Flexor metataisi. 

 4. Tendon of fie.xoraccessorius. 5. Synovial capsule of tibio-astragaloid joint bulging anteriorly (bog spavin). 6. Ditto, 

 bulging posteriorly (articular thoroughpin). 7. Cunean tendon. 8. Internal malleolus of tibia g. Bursa beneath 

 cunean tendon. 10. Sheath of perforans tendon distended inferiorly. 11. Large metatarsal bone. 



C- 



-LEFT HOCK — OUTER ASPECT 



I. Distended sheath of perforatus tendon. 2. Extensor pedis. 3. Flexor perforans. 4. Peroneus. 5. Distension 

 of sheath of perforans tendon. 6 and 10. Upper and lower distensions of sheath of peroneal tendon 7. Superior 

 bulging of synovial capsule of tibio-astragaloid joint. 8. Sheath of extensor pedis tendon. 9. Sheath of perforans 

 tendon bulging inferiorly. 12. E.xtensor brevis muscle. 



