TRANSPORTATION OF SPERM OUTSIDE GENITAL TRACT OF MALE 



195 



DORSAL PERITONEUM 



LUNG 



OVIDUCT 



Fig. 113. Open body cavity of adult female of Rana pipiens, showing distribution of 

 cilia and ostium of oviduct. (Slightly modified from Rugh, '35.) 



pulses aroused during the reproductive act or orgasm together with the actual 

 presence within the reproductive tract of seminal fluid. However, this nerve- 

 muscular activity is assuredly not the only means of sperm transport although 

 it may be the more normal and common method. A slower means of trans- 

 port, that of sperm motility, plays an important role in many instances. This 

 is suggested by such facts as fertility being equal in women who experience 

 no orgasm during coitus compared to those who do; proven fertility in rabbits 

 and dogs whose genital tracts are completely de-afferented by spinal section; 

 and conception by females artificially inseminated intra vaginum. (See Hart- 

 man, '39, p. 699.) Moreover, Phillips and Andrews ('37) have shown that 

 rat sperm injected into the vagina of the ewe along with ram sperm lag behind 

 the ram sperm in their migration upward in the genital tract. That is, the 

 abnormal environment of the genital tract of the ewe in which the rat sperm 



