. True manhood : a manual for young men . ner one contains foldsfalling loosely at intervals to form a sort of valvewhich prevents the contents from flowing is worked over again in the mesenteric glands. For the first time in its course, cells appear. Glands have now, by the vito-chemical action oftheir secretions upon food and drink, produced othercells or corpuscles. In this chyle are multitudes TRUE MANHOOD. 125 k of granule dots ; others arrived at the size and con-dition of nuclei; and a few fully formed cells are^. distinctly visible; all floatingalong together in the limp
. True manhood : a manual for young men . ner one contains foldsfalling loosely at intervals to form a sort of valvewhich prevents the contents from flowing is worked over again in the mesenteric glands. For the first time in its course, cells appear. Glands have now, by the vito-chemical action oftheir secretions upon food and drink, produced othercells or corpuscles. In this chyle are multitudes TRUE MANHOOD. 125 k of granule dots ; others arrived at the size and con-dition of nuclei; and a few fully formed cells are^. distinctly visible; all floatingalong together in the limpidcurrent. Coagulation takes place-^ c-^ ^^ ^^ more readily now than whenfg^ ib^^ ^P the contents were in the ali-mentary canal. When thisliquid i sallow edto stand ashort time it will coagulate, andthen the clot seen through amicroscope shows cells entangledin numerous thread - like fila-ments. It is called fibrine. Theclot is surrounded with a thin,watery fluid called serum. Fib- Fig. XXIX. Chyle Cor- rine is not seen in running Like jelly or glue, while warm itis liquid, but thickensupon cooling. The color of chyle hasalso turned from a milkywhite to a pale, reddish,yellow hue. Perf ec ted chylemoves on to the thoracicduct, a tube about thesize of a goose quill,passing in front of the ^^ ^^^ spine to the neck, where it curves just in front of the 126 TRUE MANHOOD. shoulder blade and enters a large vein, the sub-clavian, and goes to the heart; 17, 6, 7, show theThoracic Duct, in Figure XXX. Venous Blood. Venous capillaries in the alimentary canal also actthe part of absorbents and draw into themselves thatportion of the chyle which does not enter the lacteals. These minute veins unite and reunite until they alljoin in one large tube called the portal vein, meaningvenous gateway or door. This vein enters the liver, where it again dividesand redivides into capillaries. The rich, creamy part of the chyle finds its way tothe mesenteric glands; the thin, watery part comest
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