chap, xv.] NERVES OF THE UPPER LIMB. 261 



Thus are explained those cases where the median 

 has been sutured after accidental division, with the 

 effect that sensation has returned in the cutaneous 

 parts supplied by the nerve within a few hours. 

 Such return of sensation is probably due to the sup- 

 plementary action of the interlacing nerve-fibres bound 

 up with other trunks, and not to the " immediate 

 union of a divided nerve," as was at one time an- 

 nounced. 



