106 



THE ESSENTIALS OF HISTOLOGY. 



mammals there appears to be only one end-plate to each fibre, while in 

 reptiles there may be several. The end-plate is covered, external to 

 the sarcolemma, by an expansion of the sheath of Henle of the nerve- 

 fibre. 



FIG. 129. TERMINAL RAMIFICATIONS OF THE AXIS-CYLINDER IN END-ORGANS OK 

 MUSCLE, STAINED WITH CHLORIDE OF GOLD. (Ranvier.) The varicosities here 

 seen are probably produced by the reagent. 



