CHAPTER XV 

 THE EEPRODUCTIVE SYSTEM 



GENERAL CONSIDERATIONS 



The reproductive system differs structurally, widely in the two 

 The several organs involved, however, are in general strictly 

 homologous in the male and female organism. The differences result 

 from a divergent specialization concomitant with a division of lahor 

 in the reproductive act and process. The specialization involves both 

 progressive and regressive differentiation, the latter producing certain 



Sinus prostaticus 



Prepuce 

 Clans penis 



Fossa namcularis 



Ampulla of ductus defer ens 



Seminal vesicle 

 Ejaculatory duct 

 Prostate gland 



turethral gland 

 Btilbus urethrae 

 Ductus deferens 



Paradidymis 

 Ductuli efferentes 

 Ductulus abberans 

 Ductus epididymis 



Rete testis 

 Tubuli recti 



*Tubuli contorti 

 A ppendix epididymis 



FIG. 418. DIAGRAM OF MALE GENITALIA. (Adapted from Merkel.) 



vestigial appendages, of different origin in the opposite sexes. The 

 MALI: OIIGAXS OF UKI-KOIHTTION include a primarily and essentially in- 

 ternal group of genital organs, namely, the testis, and its associated 

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