. A text-book of comparative physiology [microform] : for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. TIIR DRVRLOPMKNT OP THB EMBUYO ITSELF. 118 opeida (fliheii and amphibians). A vascular process from the |ierit(meum (glomerulus) projects into a dilated section of the bcxiy cavity, which is in part separated from the rest of this cavity (ccelom). ThiN process, together with the segmental duct, now coilral, and certain short tubes developed from the original duct, make up tho pro
. A text-book of comparative physiology [microform] : for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. TIIR DRVRLOPMKNT OP THB EMBUYO ITSELF. 118 opeida (fliheii and amphibians). A vascular process from the |ierit(meum (glomerulus) projects into a dilated section of the bcxiy cavity, which is in part separated from the rest of this cavity (ccelom). ThiN process, together with the segmental duct, now coilral, and certain short tubes developed from the original duct, make up tho pronephros. The segmental duct opens at length into tho cloiioii. The metonephroa (Wolflian body), though largely developed in all vertebrates during foittal life, is not a persistent excretory organ of adult life. In the fowl recent investigation has shown that the Wolffian (segmental) tubes originate from outgrowths ef the Wolffian. I In the fowl (Uaddon). lit (flattened) layer; Ay, ^, notochord; p. t., pro- rio. 1«1. i- lu. ISO,—Rndlmentarr prlmltlre kidnejr of embrjronte dof. The poaterlor portion of the hoij uf the embryo t« leen from the ventral side, covered by the Inteetinal layer or the yelk-*ac, which hae been torn away, and thrown biick In front in Older to ihow the primitive kidney dncta with the primitive kidney tubet (a). A, primitive vertebne; e, donal medulla; d, paaiage into the pelvic Inteetinal cavity. (Haeekel, after Blicboff.) Pio. ISI.—Primitive kidney of a hnman embryo, u, the urine-tnbes of tho primitive kidney; w, Wolfllan dnct; to', npper end of the latter dforMgnl'i hydatid); m, Mailerlan ductim', npper end of the latter (Faitoplan hydatid); ff, hermaphrwdita gland. (After Kobelt") duct and also from an intermediate cell-mass, from which latter the Malpighian bodies take rise. The tubes, at first not con* 8 K: j^t/.ij.''JiKit'!'-'. Please note that these images are extracted from scanned page images that may have been digita
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Keywords: ., bookauthormillswes, bookcentury1800, bookdecade1890, bookyear1890
