8 Diseases of the Genital Organs 



A study of Fig. 1 will show that in the descent of the 

 testicle and attached structures, a broad peritoneal sheet, 

 the mesorchium, is formed, extending from the spermatic 

 artery, A, to the gubernaculum, G. Midway in this a sec- 

 ond peritoneal duplicature leaves the broad expanse to en- 

 velop the vas deferens, V. The ruminant testicle descends 

 directly and in doing so, the first section of the gubernacu- 

 lum, G, passes through the inguinal ring followed by the tail 



Fig. 4 — Cross Section through Scrotum of Young Bull viewed from 

 Posterior Side. 

 /, /, Body of epididymis ; 2, 2, vas deferens. The right testicle has revolved on 

 its long axis so that the epididymis and vas diferens with the mesorchium hetween 

 them rest upon the postero-external surface of the gland. 



of the epididymis, E, with the caudal end of the testicle, and 

 when this point reaches the fundus of the scrotum and the 

 basal point of the attachment of G to the dartos, the descent 

 is completed. The testicle of the bull descends in a direct 

 line and when it comes to rest upon the bottom of the scro- 

 tum by its caudal end, it remains upright, with the epi- 

 didymis lying against its median side on the outer side of 

 the mesorchium, and the vas deferens upon its median side. 

 The spermatic artery, A, instead of leaving the gland per- 



