. The comparative anatomy of the domesticated animals. Veterinary anatomy. THE BRACHIAL PLEXUS. 759 and descending ramuscules, enters the substance of the coraco-radialis. It also fur- nishes filaments to the coraco- humeralis, before its passage between the two branches of that muscle. Besides this, it concurs, by a small branch, in the formation of one of the anterior thoracic nerves. 12. Badial Nerve. (Figs. 347, 16; 348, 3.) This is certainly the largest nerve furnished by the brachial plexus. It arises chiefly from the first dorsal pair, and is directed backwards and down- wards, on the i
. The comparative anatomy of the domesticated animals. Veterinary anatomy. THE BRACHIAL PLEXUS. 759 and descending ramuscules, enters the substance of the coraco-radialis. It also fur- nishes filaments to the coraco- humeralis, before its passage between the two branches of that muscle. Besides this, it concurs, by a small branch, in the formation of one of the anterior thoracic nerves. 12. Badial Nerve. (Figs. 347, 16; 348, 3.) This is certainly the largest nerve furnished by the brachial plexus. It arises chiefly from the first dorsal pair, and is directed backwards and down- wards, on the inner face of the subscapularis and adductor mus- cle of the arm, whose direction it crosses. In this portion of its course, it proceeds parallel to the humeral artery, from which it is separated by the ulnar nerve. Arriving at the deep humeral artery, which it leaves on the outside, it passes behind the humerus with the divisions of that artery, and enters be- tween the large extensor and short flexor of the fore-arm. After creeping along the pos- terior border of the latter muscle, it gains the anterior face of the ulnar and radial ar- ticulations, where it is covered by the two principal extensors of the metacarpus and the pha- langes, and meeting the radial artery, accompanies it on to the oblique extensor of the meta- carpus. There it terminates by two branches which enter the texture of that muscle. 1, Subscapular nerve; 2, Axil- lary nerve; 3, Radial nerve ; 4, Superficial ramuscule of the musculo-cutaneous nerve; 5, Ulnar nerve; 6, Its terminal cutaneous branch.—A, Anterior radial artery. Fi^. EXTERNAL NERVES OF THE ANTERIOR Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Chauveau, Auguste, 1827-1917; Arloing, Saturnin, 1846-1911; Fleming, George, 1833-1901. tr. New York. D. Appleton an
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