Carpenter's principles of human physiology . stage of its development; in the free floating corpusclesknown as the white corpuscles of the blood; in granulation cells and pviscorpuscles; in the corpuscles of the ductless glands; in osteoblasts, and else-where, the small masses of Protoplasm contain a nucleus; and such bodies maybe conveniently designated by the term employed by Haeckel of Plastids. Inmost cases the outer surface of the Protoplasm has undergone a certain,though often very slight, degree of consolidation. And when this consolida-tion has proceeded so far as to form a thin membra
Carpenter's principles of human physiology . stage of its development; in the free floating corpusclesknown as the white corpuscles of the blood; in granulation cells and pviscorpuscles; in the corpuscles of the ductless glands; in osteoblasts, and else-where, the small masses of Protoplasm contain a nucleus; and such bodies maybe conveniently designated by the term employed by Haeckel of Plastids. Inmost cases the outer surface of the Protoplasm has undergone a certain,though often very slight, degree of consolidation. And when this consolida-tion has proceeded so far as to form a thin membrane around the protoplasmicmass and nucleus, an encased cell is formed, the mature forms and charactersof which differ considerably in plants and animals, though the history of theirdevelopment is nearly the same. * Engelmann, Pfliigers Archiv, 1879, Band xix. p. 1. F. Darwin, On the Con-tractile Filaments of the Teasel and of Amanita, in Quart. Journ. of Mic. Sci., July,1877, and January, 1878, p. 74. D 34 CONNECTIVE TISSUES CELLS. Fig. m^
Size: 1233px × 2026px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectphysiology, bookyear1
