38 



EQUINE ANATOMY. 



and extensor of the phalanges, meets the radial art- 

 ery, with which it goes to the oblique extensor of the 

 metacarpus and terminates. Collateral branches are 

 to the tendons of the great dorsal and adductor of the 

 arm, to all tlie extensors of the fore-arm, the skin, 

 the anterior extensor and external flexor of the meta- 

 carpus and to the extensors of the phalanges. 



13. CuBiTO-cuTANEous or cubital nerve — Formed by 

 tlie dorsal pairs. It rims backwards and downwards, 

 behind the humeral arteiy ; crossing the deep hftmeral 

 artery, it passes between the long and middle extensors 

 of ths fore arm, to the inside of the elbow, over the 

 epitrochlea, under the cubital fasciculus of the middle 

 flexor of the metacarpus, under this muscle to the 

 trapezium bone, where it ends by two branches : one, 

 cutaneous, passing between the tendons of the exter- 

 nal and middle flexors of the metacarpus and through 

 the antibrachial aponeurosis to ramify in the skin of 

 tliis region ; the other, with a branch of the median 

 nerve, forms the external plantar nerve. Collateral 

 branches, two : one to the skin of the fore-arm below 

 the elbow on the inside, the other to some muscles of 

 the posterior antibracliial region. 



14. CUBITO-PLANTAR OR MEDIAN NERVE. Fomicd by 



the eiglith cervical and the dorsal pairs. Starts from 

 the posterior part of the plexus to reacli the axillary 



