298 Explanation of [Book IX. 



15, 15, Branches of the fciatic nerves. They pro- 

 duce the branches, 17, 17, 18, 19, 20, i\ : 

 of which 17, 17, belong to the long extenfors of 

 the toes; 18, to the peroneus longus;. ip-isTubr 

 cutaneous, and divides itfelf into two branches, 

 which anfwer to the- branches 20 and 21 ; 20, 21, 

 arc? a variation of the branch 19, dividing itfelf 

 iboner into 20, 21. 



22, 2, The fifth, fixth, feventh, and eighth pair of 

 cervical nerves. 



33, A branch; which, arifing from the above nerves 

 in their coiirfe to the axilla, is diftributed to the 

 infide of the pectoral mufcle. 



24, A branch, which, arifing in the fame manner from 



the above nerves, is beftowed upon the infide of 

 the ferratus anticus. 



25, 25, A branch, which, going off like the former 



from the above nerves, belongs to the mufcle called 

 latiffimus dorfi. 



26, A branch of the fixth pair of cervical nerves, be-^ 



flowed upon the ferratus magnus mufcle, run- 

 ning down according to the direction of that muf- 

 cle, and afterwards under the latiffimus dorfi. 



27, 28, 29, 30 ; 27, 28, 29, 30. The four large 

 brachial nerves, in which thofe running on each 

 fide by the axillae principally terminate. 27, 27, 

 The firft, which in a manner perforate the muf- 

 culi coracobrachiales. 28,- 28, The fecond, 

 which run according to the length of the hu- 

 merus as ' far as the bending of the arm, and 



* thence by the fore-arm, down to the palm of the 

 hand. 29, 29, The third, which run on the back 

 part of the humeri. 



30, 30, The fourth, 'which run down, according \o 



the 



