. True manhood : a manual for young men . which likewise speedily takeup liquids, as soups, gruels, alcohol and milk, with-out their being subjected to the process of veins grow larger by union, and empty into theportal vein. The stomach, spleen and intestinal veinsall converge and empty their contents through thisvery important tube, which distributes it throughoutthe liver. It leaves this gland by the hepatic veins,as seen in the center of each lobule in Figure XX. While in the liver it becomes blood—it here gainsliver sugar, additional fat, and a larger number ofcells. There
. True manhood : a manual for young men . which likewise speedily takeup liquids, as soups, gruels, alcohol and milk, with-out their being subjected to the process of veins grow larger by union, and empty into theportal vein. The stomach, spleen and intestinal veinsall converge and empty their contents through thisvery important tube, which distributes it throughoutthe liver. It leaves this gland by the hepatic veins,as seen in the center of each lobule in Figure XX. While in the liver it becomes blood—it here gainsliver sugar, additional fat, and a larger number ofcells. There is also a greater perfection of fibrine,and consequently it clots more readily. There is lesswater, and of course more consistence. Venous blood is of a dark purple color, as it occu- TRUE MANHOOD. 127 pies the veins. It constitutes three-fourths of all theblood in the system and is on its way to the heart,which it reaches by the vena cava. That which comes from the veins of the head andarms reaches the heart through the vena cava de-. Fig. XXXI. Heart and Bloodvessels, o. Vena Cava Ascendens. Artery. Its right and left braiiches. q. Vena CavaDescendens. p. Portal Veins. scendens (Fig. XXXI); that which comes from thelower extremities and the hepatic vein, arrivesthrough the vena cava ascendens (same Figure). CHAPTER XV. * ARTERIAL BLOOD. The chyle from the mesentery, and all the venousblood brought to the heart by the thoracic duct, thehepatic vein, the vena cava ascendens, and descendens
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