

v///: \A;/;I / v 



When it reaches tie intcrsfire of the triceps and nnterior bmchial, it crosses the limb 

 the outer lure of the elbow, and divides into two M-rie.s of terminal brunches. 



The miiseulur blanch enter.- beneath 



Fig. 351. tho muscles on the anterior face of the fore- 



arm. '1 lie cutaneous bifurcates inum - 

 diutely: the smallest brunch, p.i.-.-mg in- 

 wards, extends beyond tho bend of the 

 elliow, lies at the inner Imrder of the median 

 subcutaneous vein, mid is distributed to the 

 lower moiety of the fore-arm, the thumb, 

 and internal border of the iudex digit Tin- 

 luru'e.-t lies at the outer side of the median 

 subcutaneous vein; it sends a recurrent 

 rainuscule to the bend of the ell.w. and. at 

 the elbow, detaches three filaments to the 

 first, second, and third dorsal intermeta- 

 carpal spaces ; these filaments bifurcate at 

 the dot-sum of the digits to constitute the <<,!- 

 lateral dorsal nerves. The first metacarpal 

 nerve anastomoses, by a fine transverse 

 brunch, with the ulnar rumuscule that 

 constitutes the external dorsal collateral of 

 the small digit. 



To resume : the radial of the Dog uives 

 branches to the dorsal fuce of nil the digits, 

 except the external border of the first digit, 

 or auricularie. 



In tho Cut, there are some differences. 

 The internal branch of the radial sometimes 

 lies with the external branch; it is placed 

 at the inner border of the metacarpus, gives 

 on" a filament to the dorsal face of the thumb, 

 and afterwards forms the internal dor.-:d 

 collateral nerve of the index. The external 

 branch leaves the anterior face of the carpus. 

 and is situated at the origin of the third 

 interosseous space, where it divides into 

 three metacarpal branches ; the external of 

 these is very fine, and directed obliquely 

 outwards, anastomosing with the dorsal 

 branch of the ulnar, between the first and 



NERVES OF THE PALMAR FACE ; DOG. f,,i , .' en n -t J x *i. 



Ihe median or the JJog is united to the 



A, Trunk of the median dividing into six u l nftr as f ar as the lower fourth of the arm ; 



branches; Bl, Branch of the superficial jt is situated behind the humeral artery, 



nervous arch ; n2, Branch disappearing on an d the filament it receives from the mus- 



a vessel ; i3, u4, Branches uniting with culo-cutaneous joins it at a short distance 



the corresponding ramuscules of the ulnar; f rom the elbow-joint. Placed beside the 



n5, Branch forming the internal collateral ra ,H a l artery, the median is, towards the 



of the index; n6, Rudimentary branch lower third of the fore-arm, immediately 



passing to the thumb; c, Collateral given below the posterior border of the great pal- 



oli by the median; cl, c2, c3, c4, Colla- mar tendon; it afterwards passes through 



terals furnished by the median and ulnar. the carpal eheath, giving a branch that 



, Palmar branch of the ulnar; b, Super- constitutes the internal palmar collaterals 



ficial branch giving off a filament to the o f (f le thumb, and external of the index ; it 



hypothenar, and a second that forms the finally forms three branches, tho first of 



superficial nervous arch ; 61, Deep branch which anastomoses with the ulnar, at the 



passing to the muscles of the skin ; m, Not eurface of the palmar arch, and is lost on 



anastomosing with the median; ml, >/<2, ,, n artery; the other two, receiving a fila- 



Anastomosing with the corresponding branch nu , n t from the ulnar at the origin of the 



of the median; the innermost passes to the digits, bifurcate to form the internal palmar 



muscles of the thumb; c, c, c, Collaterals collateral of the annularig, and collaterals of 



furnished by the ulnar. the medius and inner. The second 



in addition, a t-lender branch, that i 

 in the internal and middle lobe of the large cushion of the paw. In fine, the med:an of 



