II 



SENSIBILITY OF TIIK [NTEENAL OEGANS 



95 



licrves 



corresponding spinal ganglia and the peripheral 

 remain intact. 



A third nerve end -organ was discovered by (iolgi (1880) in 

 both man and the higher vertebrates in the transit ion.,1 

 between the tendons a.nd 

 t he muscle - fibres, and is 

 known as the mnsculo- 

 tendinous organ or cor- 

 puscle. Such organs were 

 found by Marchi in the 

 tendons ofthe eye-muscles 

 ' 1SM1\ and were studied 

 in closer anatomical detail 

 by A. Cattaneo (1888). 

 For the most part, they are 

 fusiform, sometimes cylin- 

 drical, bodies of different 

 si/es with a smaller ten- 

 dinous end turned towards 

 the insert ion ofthe tendon, 

 and a larger muscular end 

 turned towards the belly 

 of the muscle. We cannot 

 enter into their structure, 

 which is plainly shown in 

 Figs. 41, 42, and 43. taken 



O ' ' 



from Cattaneo and Ruftiui. 

 The sensory nerves and 

 nerve-endings of the joints 

 have been less studied ana- 

 tomically, alt hough clinical 

 experience has proved 

 their extreme sensibility 

 in cases of inflammation. 



The articular Cartilages FlQ . n . Two musculo- tendinous organs of rabbits, 

 seein to he destitute of treated with silvei nitrate and osmic acid, enlarged 



aboul mo diameters. (A. Cattaneo.) d, i.ifmeatio,, 

 nerves hilt these are point of a fibre thai inn, Avail's tw 'gans of Golgi ; 



,1 i .. '., endothelium invslinu this m^an; Ii llenle's 



abundant in tlie ends 01 sheath, \\\\\<-\\ the nerve i<.se s on entering \\\<- cor- 



the liiim-si thp ripviii^tciiiii puscle; m., mnsele bundle unit.-,! with the small 



tones, ine pei iosw um, ,,. M ,i,,n ofthe org t o< 



articular ligaments, and 



synovia! capsules. llauber found more or less modified Pac-mian 

 corpusides in the vicinity of nearly all the joints; it is not yet 

 known whether Golgi's organs are also present there. 



It follows from the preceding discussion that the active and 

 passive organs of movement are supplied with sensory tibivs that 

 have three special end-organs, 1 he modified I'aciida,n corpusides. 

 the musculo-teiidinoiis organs of Golgi, and the ncuro-miiscular 



