Expcrmients m Tratis planting Lunhs 



261 



nerve which follows the course of the r. cutaneous cruris posterior, 

 a branch which normally comes from the tibial nerve. A little 

 further down the r. cutaneus cruris lateralis is given off to the 

 skin'(Fig. 10). 



Further down in the shank the peroneal nerve divides into a 

 medial and a lateral ramus, the lateral being much the thicker of 

 the two, especially at the point of origin. Lower down the medial 

 ramus becomes stouter and a well defined branch to the m. tibialis 

 anticus brevis is shown. The two peroneal nerves pass into the 



Klat.fi.peronei 

 r.med.n.peronei 



Primary Limb 



rprof.n.tibialis 

 rsuperfic.d.tibialis 



rcut.crurlat 



nperoneus 



t:Superf/c.n.t/h 

 r.profnt/bia//s 



Accessory Limb 



Fig. II Experiment I. Section through the two "aneurogenic'' h'mbs; the primary Umb is cut 

 through the tarsus and the accessory limb just below the knee. X67. 



tarsal region (Fig. 1 1 ). Below the middle of the tarsus they come 

 together again to form the n. peroneus communis inferior. Before 

 the dorsum pedis is reached a nerve is given off from this branch 

 which may be traced out into the foot as the n. interstitiales dor- 

 salis primus. In the foot itself the nerve breaks up into two other 

 nn. interstitiales dorsales. One of these interstitial nerves, the 

 third, could not be traced and all the nerves are very fine at this level. 

 It will be seen from the above description that the n. peroneus 

 has a normal distribution. The relations to the muscles and other 



