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They were both pervious and opened into the vagina, near the opening of the urethra. "On the posterior surface of the bladder, or between the uterus and the bladder, were the two bags, called vesiculæ seminales in the male, but much smaller than they are in the bull. The ducts opened along with the vasa deferentia. This animal, then, had a mixture of all the parts, but all of them were imperfect."
In a large number of cases there were associated deformities of the organs of generation, especially of the female organs, and these were almost invariably on the side of the renal defect; they affected the conducting portion much more than the glandular portion that is, uterus, vagina, and Fallopian tubes in the female, and vas deferens or vesiculae seminales in the male, rather than the ovaries or testicles.
It is required that the semen should be expressed from the vesiculæ seminales, propelled along the urethra, in combination with the prostatic fluid which is equally essential, and finally ejected with a certain amount of force from the urethral orifice.
The epididemes, or prostatae are fixed to the upper part of the testes, and from them spring the vasa deferentia, or ejaculatoria, which deposit the seed into the vesicule seminales when they come near the neck of the bladder. There are two of these vesiculae, each like a bunch of grapes, which emit the seed into the urethra in the act of copulation.
The scrotum may be normal or split; the testicles, commonly two in number, may be normal or atrophic, descended or undescended; the prostate may be normal or imperfectly developed, as may also the vasa deferentia and vesiculae seminales.
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