338 



Veterinary Obstetrics 



above the testicle in the horse. In ruminants, this reversal of 

 relation does not occur, as the long diameter remains perpendicu- 

 lar. The processus vaginalis remains normally open throughout 

 life in the domestic animals, but in the adult it is so narrow that 

 abdominal viscera may not escape through it. 



When the testicle has descended into the scrotum, it is attached 

 posteriorly at the bottom to the fundus of the sac by the guber- 

 naculum and upwards along the posterior wall of the scrotum and 

 inguinal canal by the frenum, consi.sting of the peritoneal dupli- 

 cature between V and G in Fig. 57 ; above, the gland is connected 

 by means of the testicular or spermatic cord, consisting of the 

 vas deferens, arteries, veins and lymphatics covered by peritoneum. 

 In the foal, pig, and more rarely in other species, at the time of 

 birth, we frequently meet with a hernia (congenital scrotal 

 hernia) of intestines or omentum through an abnormally large 

 processus vaginalis, alongside the spermatic cord. 



UA<::^ 



Fig. 57. Right Inguinai, Region of Foai., 24 Hrs. Old 

 Illustrating descent of testicle, viewed from below, the testicle 



lifted upwards to reveal attachmeuts. 

 P, Processus vaginalis, surrounded by a dotted line and contain- 

 ing a curved sound, S. G, Gubernaculuin testis emerging from 

 the internal inguinal ring and reaching to the larger portion, 

 G'', which extends to the epididymis, E, and is succeeded by 

 the final or third section of the gubernaculum, G^'. reaching 

 from E to the testicle, T. 

 A, Artery of testicle. V, Vas deferens. H, Hladder. UA, Um- 

 bilic arteries. 



