THE SYMPATHETIC SYSTEM. 197 



(2) Rami digitales dorsales to the adjacent sides of the first and 

 second toes. 



(3) Branches to the JO/, exfensores diyiti II. 



(4) The inner, terminal branch (Fig-. 130 A) at once divides : — 

 (a) The onter branch runs between the third and fourth toes as 



far as the commencement of the web, where it bifurcates to form 

 two Hatni ciitanei, which course along* the adjacent sides of these 

 toes as far as their apices. 



(/3) The inner branch passes to the extensor muscle, and, in part, 

 to the adjacent sides of the third and foui'th toes. 



(5) The outer, terminal branch (Fig-. 130 B) of the N. per one us 

 communis inferior passes to the muscles of the fourth and fifth toes, 

 and supplies Kami cutanei dorsales to the outer side of the fourth 

 and inner side of the fifth toes. 



Cutaneous branches of the N. tibialis supply the outer side of the 

 fifth and inner side of the first toe. 



G. The Sympathetic System {Sympathicus). 

 {Re-written hy the translator.) 



The sympathetic cord or chain is a row of nervous gang'lia 

 (vertebral or lateral ganglia), connected by nerve-fibres, and lying 

 on either side of the vertebral colmnn (Figs. 117 and 131); with 

 the exception of the last spinal nerve there is usually one sympa- 

 thetic ganglion associated with each spinal nerve ; in the case of the 

 tenth spinal nerve there may be only one g-anglion or as many 

 as twelve. 



The first ganglion (Figs. 11 1, opposite ics; 117 6*1) is placed on 

 the hypoglossal nerve just as it emerges from the first intervertebral 

 foramen ; it is large, but smaller than the second ; its Ramus 

 communicmis is represented by several fine and very short fibres, 

 which connect the ganglion with the nerve. This ganglion is con- 

 nected with the second by two or three nervous threads, between 

 which passes the subclavian artery, a true Annnlus Vieussenii being 

 thus formed (de Watteville). The other ganglia are connected by 

 single bands of fibres. The first ganglion supplies also branches to 

 the axillary artery and to the cardiac plexus. 



The second ganglion (Figs. 117 and 131) is the largest, and is 

 closely applied to the brachial nerve ; as in the case of the first 

 ganglion and hypoglossal nerve, it is attached to the second spinal 

 nerve without a distinctly marked Ramus commimicans. 



