338 



I'^eierina iy Obstetrics 



above the testicle in the horse. In ruminants, this re^'ersal of 

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

 lar. The processus vaginalis remains normally open throughout 

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

 abdominal viscera ma>- 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, consisting of the peritoneal dupli- 

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

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

 vas deferens, arteries, \'eins and lymphatics covered by peritoneum. 

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

 birth, we frequentl>' meet with a hernia (congenital scrotal 

 hernia) of intestines or omentum through an abnormally large 

 processus vaginalis, alongside the spermatic cord. 



Fig. 57. Right Inguin.m, Region of Koai,, 24 Hrs. Old 

 Illustrating descent of testicle, viewed from below, the testicle 



lifted upwards to reveal attachments. 

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

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

 the internal inguinal ring and reaching to the larger portion, 

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

 the final or third section of the gubernaculuni, G", reaching 

 from E to the testicle, T. 



A, Artery of testicle. V, Vas deferens. B, Bladder. UA, Um- 

 bilic arteries. 



