. A text-book of comparative physiology [microform] : for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. REPEODUCTION. 87 ytm aadBero- i the outermost me other devel- Mred, however, it m mixture of ttion and others though appear- itioudy for the over the whole no doubt. At implete chorion growtli of the e surface of the ce vascular pro- plush of velvet, mty, but abun- oic arteries and Bs in the villi. â ad B, front and side Id; «. embrronlc we* â¢howlng "»«.^Iâ¢*P' tetcrf
. A text-book of comparative physiology [microform] : for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. REPEODUCTION. 87 ytm aadBero- i the outermost me other devel- Mred, however, it m mixture of ttion and others though appear- itioudy for the over the whole no doubt. At implete chorion growtli of the e surface of the ce vascular pro- plush of velvet, mty, but abun- oic arteries and Bs in the villi. â ad B, front and side Id; «. embrronlc we* â¢howlng "»«.^Iâ¢*P' tetcrf thewwof ttM m TbomMm). luggests the type ertain groups of understood, for t of considerable ad or obliterated. >y growth of the aid; thes^elk-sao is now very small; the decidua reflexa becomes almost non- vascular, and fuses finally with the decidua vera and the cho- rion, which except at one part has ceased to be villous and vas- cular ; so that becoming thinner and thinner with the advance of pregnancy, the single membrane, arising practically from. Fia. 80.âHnniMi embrTo, twelve weeks old, with tto eoverinc*; lUttana siae. The navel-cord imutm mm the navel to the placenta, b, amnion; «, chorion; a, pla- cenU; d', lemalna of tufta on the amooth chorion; /, <t»eUua fv**" (Inner); g, dwkhMi Mrs (oater). (Uaeckel after Berahard SchiUtie.) this fusion of several, is of a low type of struotuie, the result of gradual degeneration, as the rdfe they once played was taken up by the other parts. But of paramount importance is the formation-of the pla- centa. The chorion ceases to be vascular except at the spot at which the villi not only remain, but become more vascular and branidi into arborescent forms of considerable complexity. It is discoidal in form, made up of a foetal part just described and a maternal part, the decidua serotina, the two becoming blended t-'. Please note that these images are extracted from scanned page images that may have b
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Keywords: ., bookauthormillswes, bookcentury1800, bookdecade1890, bookyear1890
