The laws and mechanics of circulation, with the principle involved in animal movement . Pig. 133.—Ovum of the Rabbit, from a Graafian follicle one-fiftieth ot an Inch in diame- ter.—Waldeyer. a, Epithelium of the ovum ; b, vitelline membrane, showingthe radiating striae forming the pore canals through which the spermatizoon makesits way to the germinal spot; c, germinal vesicle ; d, germinal spot; e, Fig. 134 —Impregnated Uterus, showing connection between villosities of chorion anddecidual membranes.—Dalton. ing ends of the growing tufts, which readily find their way intothe lumen
The laws and mechanics of circulation, with the principle involved in animal movement . Pig. 133.—Ovum of the Rabbit, from a Graafian follicle one-fiftieth ot an Inch in diame- ter.—Waldeyer. a, Epithelium of the ovum ; b, vitelline membrane, showingthe radiating striae forming the pore canals through which the spermatizoon makesits way to the germinal spot; c, germinal vesicle ; d, germinal spot; e, Fig. 134 —Impregnated Uterus, showing connection between villosities of chorion anddecidual membranes.—Dalton. ing ends of the growing tufts, which readily find their way intothe lumen of the expanded uterine tubules (Fig. 134), rapidlygrowing and branching in the follicular cavities, which increase 324 PHYSIOLOGICAL ANATOMY. correspondingly, the two growing pari passu with each other,the branched processes constituting the villi of the chorion(Fig. 135); but which are only provisional, the greater num-ber soon fading out, so as to make the chorion bald1 save inthe locality elected for the placenta, the portion in imme-diate contact with the walls of the womb, where they rapidlyincrease in size, as also the uterine follicles, so as to form theplacental sinuses ; the matter being one of continuous growthand amplification on the part of both. At this point thecapillary loops sent into the villi (they had previously been
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Keywords: ., bookcentury1800, bookde, booksubjectblood, booksubjectrespiration
