1258 



UROGENITAL SYSTEM 



Each vesicle is enclosed within a fine capsule of connective tissue, which contains numerous 

 non-striated muscle fibres and is continuous below with the capsule of the prostate gland. 

 On removing this capsule the vesicle will be found to consist of a greatly coiled tube, 10-12 cm. 



Fig. 1019. — Ductus Deferentes and Vesicul^ Seminales. (After Sappey.) 



•Ductus deferens 



W \M\l/ II 



Ejaculatory duct 

 Prostatic utriculus 



Colliculus seminalis 

 Orifice of ejaculatory duct— -i- 



Ampulla of ductus deferens 



Union of vesicula 

 with ductus 



Ejaculatory duct entering 

 prostatic fissure 



Prostate 



Membranous urethra 



Orifice of prostatic utriculus 



Lower end of colliculus 

 seminalis 



Vesicula seminalis 



Fig. 1020. — Ductus Deferens and Vesicula Seminalis dissected. (After Sappey.) 



I 



Oiverticiila I H 



Diverticula 



Sacculus 



\ Sacculi of ampulla of ductus deferens 



Junction of ductus deferens and vesicula 

 seminalis 



Ejaculatory duct 



in length, which ends blindly and has attached to it on either side a number of short diverticula 

 (fig. 1020). The walls of the tube and diverticula are formed of smooth muscle tissue, arranged 

 in layers similar to those of the ductus deferentes, and are lined by a mucli folded mucous 



