THE GENITAL ORGANS OF THE MALE. 



OT7 



the bladder in passing above the vesiculse seminales, then go beneath the prostate, and 

 terminate in tlie uretlira— on the summit of a ridge— by two elliptical orifices. 



Vesiculee seminaUs.—In the BuU, the vesiculae seminales have not the same appearance aa 



Fig. 525. 



INTERNAL GENITAL ORGANS OF A YOUNG BULL (UPPER FACE). 



Bladder ; U, ureter ; C, penis enveloped by the corpus cavernosum. 1, Testicle in its fibrous 

 envelope; 2, cremaster; 3, testicle exposed; 4, head of the epididymis; 5, tail of the epididymis, 

 6, vas deferens; 7, dilatation of the vasa deferens; 8, vesiculae seminalis; 9. prostate; 10, intra- 

 pelvic portion of the urethra surrounded by its sphincter; 11, ischio-urethral muscle; 12, accele- 

 rator urinse ; 13, transversus perinaei. 



in the Horse, and they have not so large a cavity in their interior. They are two elongated 

 masses, lobulated on their surface, yellow in colour, and possessing quite a glandular aspect. 

 They have sometimes been designated the lateral prostates. They are composed of aciniform 



