Class-book of physiology : for the use of schools and families : comprising the structure and functions of the organs of man, illustrated by comparative reference to those of inferior animals . ss of digestion, causing the food to be rolledabout and moved successively over every portion of theinner or mucous coat. In the act of vomiting, there is aspasmodic contraction of all the fibres, throwing the con-tents of the stomach back into the mouth. 167. The mucous membrane (fig. 34)lines the inside of the stomach with avery soft and velvety investment. It isnot elastic, like the other coats, but


Class-book of physiology : for the use of schools and families : comprising the structure and functions of the organs of man, illustrated by comparative reference to those of inferior animals . ss of digestion, causing the food to be rolledabout and moved successively over every portion of theinner or mucous coat. In the act of vomiting, there is aspasmodic contraction of all the fibres, throwing the con-tents of the stomach back into the mouth. 167. The mucous membrane (fig. 34)lines the inside of the stomach with avery soft and velvety investment. It isnot elastic, like the other coats, but isdrawn into folds when the stomach iscontracted, and spreads out smoothlywhen it is dilated. This coat secretes a %^SSTJSSSimucous or slimy matter, which protects £iP(!&lMu!Ethe stomach from being unduly irritated thebotby its contents, and it also pours out from numerous little follicles or glands the gastric juice, inwhich the food is dissolved. 168. The gastric follicles perform an important part inthe process of digestion. They are of a tubular form, asrepresented in fig. 35, from j^oth to a^h of an inch indiameter. When there is no food in the stomach, these. Describe the serous coat of the stomach—the muscular coat—the mucouscoat. What does the mucous coat secrete 1 What is secreted by the gastricfollicles! What is the use of the gastric juice? Describe these follicles. 82 CLASS-BOOK OF PHYSIOLOGF.


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Keywords: ., bookcentury1800, bookdecade1860, booksubjectphysiologicalprocess