Histology 



315 



Sensory nerve fibers. 

 Muscle fibers. 



Motor plate. 



Medullated nerve fibers. 



Nerve fiber bundle. 



Fig. 256. Motor nerve-endings on intercostal muscle-fibers of a rabbit. (X 150.) 

 (Courtesy, Bremer: "Text-Book of Histology," Philadelphia, The Blakiston 

 Company.) 



Fig. 257. Human cardiac muscle. Section parallel to length of fibers. The occa- 

 sional very dark transverse bands are the intercalated disks. (After Heidenhain. 

 Courtesy, Bremer-Weatherford: "Text-Book of Histology," Philadelphia, The 

 Blakiston Company.) 



