A text book of physiology . ey extend, in the maincorroborate those of Heidenhain. In the quiescent pancreas of therabbit, Fig. 43 A, the cells are for the most part filled with granules,the transparent outer zone being reduced to small dimensions; theoutlines of the individual cells are very indistinct, with the marginsof the alveoli smooth; the lumen of the alveolus is obscure; and theblood-supply is scanty. Upon secretion being set up, Fig. 43 B,the margins of the active alveoli become indented through a bulgingof their constituent cells, the outlines of which now become dis-tinct ; the gra


A text book of physiology . ey extend, in the maincorroborate those of Heidenhain. In the quiescent pancreas of therabbit, Fig. 43 A, the cells are for the most part filled with granules,the transparent outer zone being reduced to small dimensions; theoutlines of the individual cells are very indistinct, with the marginsof the alveoli smooth; the lumen of the alveolus is obscure; and theblood-supply is scanty. Upon secretion being set up, Fig. 43 B,the margins of the active alveoli become indented through a bulgingof their constituent cells, the outlines of which now become dis-tinct ; the granules retreat towards the inner zone, bordering on thecavity of the alveolus, and as secretion goes on, evidently diminishin number, the whole cell becoming hyaline and transparent from1 Verhandl. Naturhist. Med. Vereins, Heidelberg, Bd. i. (1877) Hft. 5. Chap, l] DIGESTION. 253 the outer border inwards ; at the same time the blood-vessels dilatelargely, and the stream of blood through the capillaries becomes fulland


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Keywords: ., bookcentury1800, bookdecade1870, bookpublisherlondo, bookyear1879