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On day 9 ofdioestrus the uteri of pseudopregnant rats bearing deciduomata were either slit lengthwise to curette out the decidual tissue or were removed in toto to determine if the prolonging effect of decidualization on pseudopregnancy could be eliminated. Both operations significantly reduced the length of the pseudopregnancy dioestrus (combined mean of 19\m=.\3\ m=+-\ 0\m=.\56 days v. 22\m=.\2\ m=+-\ 0\m=.\77days for rats with intact deciduomata; P < 0\m=.\01).Conversely, the control experiment of slitting the non-decidualized uterus on day 9 significantly prolonged pseudopregnancy in comparison with control groups (19\m=.\2 \ m=+-\ 0\m=.\92 days v. 13\m=.\5\ m=+-\ 0\m=.\37 days for pseudopregnant controls which were not subjected to operation, or had a laparotomy or uterine traumatization performed on day 9; P < 0\m=.\001). The effect of slitting the uterus on other days of pseudopregnancy was investigated. The mechanism through which slitting prolongs pseudopregnancy is unknown.

The overall reproductive process consists of both the human sex organs which include the male and female reproductive system. The ability to produce off springs that have similar characteristic as their parents is the goal of reproduction. The sexual type of reproduction takes place in human and both male and female reproductive system is required. Male reproductive system is mainly concerned with production of semen (whitish viscous fluid emitted from the male reproductive tract that contains sperm and fluids) and transferring it into the female reproductive tract. In this review, we will discuss the latest findings in the research pertaining the male reproductive system and its contribution towards the research in advancement of reproductive physiology.

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