310 



MICROSCOPIC ANATOMY OF THE ORGANS. 



be seen numerous varicosities, which give the inner sheath the 

 appearance of containing nuclei. 



Ruffinis corpuscles are in some respects similar to Meissm-r's 

 tactile bodies. They are found at the border of the cutis and 

 subcutis, and also in the subcutis itself. They are about 1 .:'>") 

 mm. in length. The nerve fibres, after losing their sheaths, 

 divide into numerous varicose branches which end freely by 

 small knob-like thickenings. The entire corpuscle is sur- 

 rounded by a thin connective-tissue capsule. 



FIG. 234. 



thickening 

 - A.r.ift cylinder 



( W/.s o core 



Terminntion 



__ of t net I idlary 

 . sheath 



rf^'V ^ jflr 



r Meuulidfy 



' fj /<6</t 



9 ' *"'""' 



Herbst's corpuscle from the cere of a duck's bill. X 450. 



Other end bulbs described as Golgi-Mazzoni corpuscles are 

 quite similar to these. They possess, however, more strongly 

 developed connective-tissue capsules. 



Two closely related forms, the Herbst corpuscle, and the 

 Vater-Pacini corpuscle, are end bulbs in which the axis cylin- 

 der is not at all or only slightly branched, and the connective- 

 tissue capsules are strongly developed in the form of concentric 

 lamellae. 



