II 



SENSIBILITY OF TIIK INTKKNAI, <> KUANS 87 



lirat, spots is therefore rendered very difficult l>y the number 

 of eold spots present. 



Apart from thermal and pain sensihility in the gland, ;md 

 ]>ressure sensihility in the prepuce, frenulum, and skin of 



Flo. 35.- Diagram of terminal IRTVC apparatus in t'nnali- ^ruitals, corresponding, according to 

 St'anicni, with the fiHl-oruans n\' tin/tile scnsiliility in .ncni-ral. The tactile oryan is supplied 

 liy myliiiatiMl (f.n.,f.n.',j.n.'") and miii-iiiyi'liiiatril (/.., /..',/./..) fibres, Tin 1 liist lorin a net- 

 work with lai-fjf branclirs and noilositii's (r. <!.)', tin- >i'i'onil, a in-twork with wide meshes and 

 line laniilical ions (r..<.). These Networks are found together in the epithelial and suli-epitlielial 

 layers. The branches of the tirst (r.g.) come into contae-t with ditl'eient iated cellular elements 

 (/./.): peri]ihei-ul sensory cells. Some fibres, both nne'inated and iKui-myelinated, do not run 

 -In ect to the periphery to enter the corresponding network, but contribute on thr u ;l \ toth,- 

 stiuetui'e of one or more end-corpuscles, which they leave us ultra- terminal or, better, ultra- 

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



(t./i.), i ies from the large myelinated spinal libres (f.n., f.n."); the other, secondary 



(t.*.), from the sympathetic (Hues (/..', .//-.). 



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 



