The alligator and its allies . cut transversely;e, epithelium; tp^ tunica propria. The Digestive System 185 of the animals from which the tissues were takenthan to the different conditions of hibernation andfeeding. The point to benoticed is that the increasein the diameter of the intes-tine is due almost if notentirely to an increase inthickness of the connectivetissue and muscle layers. No difference in the com-plexity of the folds of themucosa of the two stagescan be noticed. The thickness of the fibro-muscular part of the wall ofthe intestine varies consid-erably on different sides ofthe s


The alligator and its allies . cut transversely;e, epithelium; tp^ tunica propria. The Digestive System 185 of the animals from which the tissues were takenthan to the different conditions of hibernation andfeeding. The point to benoticed is that the increasein the diameter of the intes-tine is due almost if notentirely to an increase inthickness of the connectivetissue and muscle layers. No difference in the com-plexity of the folds of themucosa of the two stagescan be noticed. The thickness of the fibro-muscular part of the wall ofthe intestine varies consid-erably on different sides ofthe same region, but it con-sists of the same layers inabout the same relativeamounts. Figure 51 represents inoutline the wall of the mid-dle region of the small intes-tine during feeding. The epithelium is of the same thickness in thetwo stages, and the only difference in its characterthat can be seen under a high magnification is that,in the middle region at least, the nuclei are notcrowded so close together at the basal ends of. Fig. 51. An outline of atranssection of the wall of themiddle region of the small in-testine of the feeding animal,under low magnification; w,mucosa; other letters as inFigure 42. l86 The Alligator and Its Allies the cells as in the hibernating stage but are scat-tered more towards their free ends. Altogether, the differences in microscopic struc-


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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1915