EXPLANATION OF FIGUEE XIII. 



THE SUPERFICIAL LAYER OF MUSCLES TAIvEN FROM THE BODY OF THE HORSE, 

 SO AS TO EXPOSE THOSE MUSCLES WHICH ARE MORE DEEPLY SEATED. 



THE HEAD A^^D NECK. 



a. Buccinator. 

 h. Caninus. 



c. Retractor labii inferioris. 



1, 1. Orbicularis oris. 



2, 2, 2. Complexus major. 



3, 3. Traclielo mastoideus. 



4, 4. Subscapulo hyoideus. 



5, Steriio maxillaris. 



6, 6. Sterno th}TO-hyoideus. 



7, Jugular vein. 



8, Carotid artery, with the eighth paii", and sympathetic nerves. 



9, Trachea. 

 10. Scalenus. 



THE FOEE LIMBS. 



1. Scapulo ulnarius. 



2. Caput magnum of the triceps extensor brachii. 



3. Caput medium of the same muscle. 



4. Anconeus. 



5. Flexor bracliii. 



6. Extensor metacarpi. 



7. Extensor pedis. 



8. Extensor metacarpi obliquus. 



10. Flexor metacai'pi externus. 



11. Perforans and perforatus. 



12. Ulnarius accessorius. 



13. Flexor metacarpi internus. 



14. Flexor metacariji medius. 



15. Perforans and perforatus. 



16. Extensor metacarpi. 

 B. B. Radius. 



THE TRUNK AND BACK. 



A. Scapula. 



F. F. Longissimus dorsi. 



O. SpinaHs dorsi. 



a, a. Intercostals. 



h, b. SuperiiciaHs costarum. 



e, e. Rectus Abdominis. 



d, d. Transversalis abdominis. 



€, c, e. Obliquus internus abdominis. 



/. Hollow in the longissimus dorsi, which part of the gluteus maximus once filled. 



