574 ANNALS NEW YORK ACADEMY OF SCIENCES 



Plate 5 



Action potentials recorded from excised distal stumps of regenerating tibial 

 nerves. 



A was recorded after 36 days of regeneration with a monopolar electrode placed 

 3.5 cm. distal to the suture, and the conduction distance was 3.5 cm. The spike 

 is approximately 25 microvolts, and the time signals under A are 1.7 millisec. per 

 cycle. 



B was recorded from a normal tibial nerve with a conduction distance of 8 cm., 

 and B is a control record for C. 



C is from the opposite regenerating tibial, 1363 days after suture with the same 

 8 cm. conduction distance, and the same amplification as B. 

 The time line for B and C is 1 millisec. per cycle. 



