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Applied Physiology

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of the blood just as they are. Seeds and husks and tough strings of flesh all pass the length of the intestine and are not changed.

=22. How food gets into the blood.=--By the time food is half way down the intestine it is mostly liquid and ready to become part of the blood. This liquid soaks through the sides of the intestine and into the blood tubes. At last the food reaches the end of the intestine. Most of its liquid has then soaked into the blood tubes and only some solid waste is lef...