On food and its digestion: being an introduction to dietetics . minute pits or depressions; the confluent andprojecting intervals of which become so much longer asthey near the pylorus, that they may be compared to shortvilli. These depressions are the openings of the stomach-tubes or proper gastric glands. The stomach-tubes (a, 6, c, cl, Fig. 10) may be describedas cylinders of basement membrane, which are packedvertically side by side in a sparing matrix of dense areolartissue, and are filled by a peculiar cell-growth. Below,they terminate in closed and rounded extremities (d).Above, they ex
On food and its digestion: being an introduction to dietetics . minute pits or depressions; the confluent andprojecting intervals of which become so much longer asthey near the pylorus, that they may be compared to shortvilli. These depressions are the openings of the stomach-tubes or proper gastric glands. The stomach-tubes (a, 6, c, cl, Fig. 10) may be describedas cylinders of basement membrane, which are packedvertically side by side in a sparing matrix of dense areolartissue, and are filled by a peculiar cell-growth. Below,they terminate in closed and rounded extremities (d).Above, they expand slightly before reaching the free sur-face of the membrane (at a); where their margins finallybecome continuous with each other, so as to form a seriesof low ridges, the height and width of which vary some-what in different parts of the stomach. The length of 106 DIGESTIOX. these tubes is, on an average, about ^Vth of an inch. Theirdiameter is about -33-0-th of an inch. Thus their lengthhas to their breadth a proportion of ten or twelve to one. Fig. Vertical section of the stomach, near its middle, and parallel to itsMagnified 30 diameters, a, Openings of stomach-tubes, and their intervening ridges or \ :tions; b, upper parts of the tubes, lined by columnar epithelium; c. lowerparts, occupied by proper gastric cells: d, pounded ends of the tub- gdense areolar tissue, containing fibre-cells, and continuous with the inter-tubular matrix; /, submucous areolar or cellular coat, of a looser texture,and containing vessels (some of which are seen cut across): 0. translayer of the muscular coat; h, longitudinal layer ; i. peritoneal coat. Their form frequently so far deviates from that of a simplecylinder, as to present slight constrictions or undulations. GASTKIC CELLS. 107 And occasionally they even exhibit a kind of csecal pouchor blind offset of greater or less length. These pouchesusually spring from the lower extremities of the tubes,which have generally a somewhat incr
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Keywords: ., bookauthorbrintonw, bookcentury1800, bookdecade1860, bookyear1861
