. On sterility in the male and female, its causes and treatment. y nu-merous lymphatic vessels which absorb and carry intothe circulation the fluids which are deposited and se-creted in these organs, when from long-continued con-tinence they are not excreted. The interior of the semi-nal vesicles presents tortuous cells or canals separatedby as many ridgelike appendages, like those found inthe neck of the gall bladder, which cause the groovedappearance remarked externally. This structure isseen in the annexed cut (fig. 9). Uses,âIt is not as easy as it is imagined to definethe uses of the semi
. On sterility in the male and female, its causes and treatment. y nu-merous lymphatic vessels which absorb and carry intothe circulation the fluids which are deposited and se-creted in these organs, when from long-continued con-tinence they are not excreted. The interior of the semi-nal vesicles presents tortuous cells or canals separatedby as many ridgelike appendages, like those found inthe neck of the gall bladder, which cause the groovedappearance remarked externally. This structure isseen in the annexed cut (fig. 9). Uses,âIt is not as easy as it is imagined to definethe uses of the seminal vesicles. Are they the secre-tory organs designed solely for the work of generation,furnishing to the semen a particular fluid which formsits greater part and imparting to it the prolific qualitieswhile it passes through them ? or are they simply thereservoir for the seminal fluid, secreting always a mu-cous fluid designed to moisten their internal surface,like all the cavities provided with foHieular membranes? 28 STERILITYâCAUSES TREATMENT. [Fig. 9.]. a, a. Prostate gland, b. Gland cut away to show the ducts of the ve-siculae. c. Ends of the ducts, d, d. Cells of the vesiculae. e. Left vasdeferens, also cut open to show its connexion with the vesiculse. /.Right vas deferens, g, g. Openings of the vas deferens and vesiculse intothe urethra, h. Bladder, i. Ureter. Swammerdam and RIcherand have contested this latteropinion to adopt the first which experience seemsespecially to justify : in fact, it is certain that thephysiological integrity of the seminal vesicles is no lessindispensable to the work of generation than that ofthe testicles, which proves in every hypothesis (at leastin the human species) the necessity of the mixture ofthe liquids which they supply, and also refutes theidea of some physiologists, who regard the vesicles assimply fulfilling the uses of position or as mechanicalmeans for the transmission of the seminal fluid at themoment of ejaculation. IN THE
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