ii SENSIBILITY OF THE INTEKNAL OKGANS 87 



the heat spots is therefore rendered very difficult by the number 

 of cold spots present. 



Apart from thermal and pain sensibility in the gland, and 

 pressure sensibility in the prepuce, frenulum, and skin of the 



; 



FIG. 35. Diagram of terminal nerve apparatus in female genitals, corresponding, according to 

 Sfameni, with the end-organs of tactile sensibility in general. The tactile organ is supplied 

 by myelinated (f.n., f.n.', f.n.'") and non-myelinated (/.s.,/.s.',/./.s.) fibres. The first form a net- 

 work with large branches and nodosities (r.gr.) ; the second, a network with wide meshes and 

 tine ramifications (r.s.). These networks are 'found together in the epithelial and sub-epithelial 

 layers. The branches of the first (r.g.) come into contact with differentiated cellular elements 

 (r.t.) : peripheral sensory cells. Some fibres, both myelinated and non-myelinated, do not run 

 direct to the periphery to enter the corresponding network, but contribute on the way to the 

 structure of one or more end-corpuscles, which they leave as ultra-terminal or, better, ultra- 

 corpuscular fibrils (/..,/..'). In each corpuscle there are two nerve-endings : one, primary 

 (t.p.), comes from the large myelinated spinal fibres (f.n., f.n."); the other, secondary 

 (/.*.), from the sympathetic fibres (f.n.", /..). 



penis, v. Frey found no sensory points reacting to any other 

 quality of sensation. 



There is accordingly no foundation for the view by which some 

 have sought to define a special sense on the outer surface of the 

 genital organs for voluptuous pleasure. Excitation of the tactile 

 points, and perhaps also of the pain points and thermal points of 

 the penis, may certainly be associated with voluptuous sensations 



