. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. MARY J. ROSS. opening of these shallow pits or indentations into the lumen of the eland, and even in some cases before that has occurred, the & cells^of the surface epithelium and mesoderm begin to multiply ..••••'','&$: :':-"./..',.*".•.'.•'.••' v '-. \.••' • : " •/"'''--- "''***'... '• *',; .' °*-0. •'* FIG. 25. Same as Fig. 24. a., the original round cells have now divided, form- ing groups of several cells ; d., the indentations at the surface have deepened till they resemble those of Amb
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. MARY J. ROSS. opening of these shallow pits or indentations into the lumen of the eland, and even in some cases before that has occurred, the & cells^of the surface epithelium and mesoderm begin to multiply ..••••'','&$: :':-"./..',.*".•.'.•'.••' v '-. \.••' • : " •/"'''--- "''***'... '• *',; .' °*-0. •'* FIG. 25. Same as Fig. 24. a., the original round cells have now divided, form- ing groups of several cells ; d., the indentations at the surface have deepened till they resemble those of Amblyitoma ; ep., the epithelial cells are becoming radially arranged around the gland fundaments. rapidly, projecting into the cavity of the stomach. These first outgrowths are, as Sewall ('79) describes them, in the form of short ridges, not of villi, as described by Brand ('78) and Negrini " ttlf^P-ii, rJ^^:^4- S FIG. 26. Same as Fig. 24. Here the epithelium is increasing in size, pushed out also by increase in growth of the mesoderm to form the primary outgrowths or proc- esses,//. The glands are nearer the surface and the pits for the ducts, d., are thus being deepened ; /., small central lumen. ('86). By continued outgrowths along these depressions and ridges the ridges intersect, resulting in a fine network. This is clearly seen with the naked eye in stomachs taken from pigs 14. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
