ABDOMEN AND PELVIS 



527 



Examine further 



(a) Base of prostate (basis prostatae). 



(b) Apex of prostate (apex prostatae). 



(c) Isthmus of prostate (isthmus prostatae). 



Seminal Vesicles (Vesiculae seminales). (Vide Figs. 281, 282, and 

 Spalteholz, Figs. 599, 640, 653, 654.) 



Note the general shape of the seminal vesicles ; also the gen- 

 eral direction of their long axes. Determine their relations to 

 the prostate, the fundus and neck of the bladder, the ampulla 

 of the deferential duct, and the ureter. Examine the body of the 

 seminal vesicle (corpus vesiculae seminalis) and its excretory 

 duct (ductus excretorius). With what structure does the ductus 

 excretorius join below? 



FIG. 282. 



Ductus deferens \ 



Corpus vejsiculae seminalis 



Ampulla ductus deferentis 



Ductus excretorius vesiculae seminalis 



Ductus ejaculatorius 



Longitudinal section through the right seminal vesicle. (After Toldt, Anat. Atlas, Wien, 1900, 2 Aufl. 



p. 488, Fig. 829.) 



Deferent Duct (Ductus deferens) (O. T. Vas deferens). (Vide 

 Spalteholz, Figs. 599, 633, 640, 653, 654, 656.) 



Trace the ductus deferens from the annulus inguinalis ab- 

 dominalis downward into the pelvis. Determine again its rela- 

 tion to the A. et V. epigastrica, the A. et V. iliaca externa, and the 



