. The effects of inanition and malnutrition upon growth and structure . Fig. 27. Fig. 28. Fig. 27.—Cross sections of two gland-tubules from the albuminous (accessory sexual) gland of the snail, Helix pomalia; to show the effect of inanition. (From Krahelska '13.) a, section of a normal gland tubule; bases of the cells external, with nuclei and granular cyto- plasm; the vacuoles in the cells correspond to the secretion granules; lumen lined by a flattened synctial layer, b, corresponding section of a gland-tubule after about five months of starva- tion. Tubule and constituent cells greatly redu
. The effects of inanition and malnutrition upon growth and structure . Fig. 27. Fig. 28. Fig. 27.—Cross sections of two gland-tubules from the albuminous (accessory sexual) gland of the snail, Helix pomalia; to show the effect of inanition. (From Krahelska '13.) a, section of a normal gland tubule; bases of the cells external, with nuclei and granular cyto- plasm; the vacuoles in the cells correspond to the secretion granules; lumen lined by a flattened synctial layer, b, corresponding section of a gland-tubule after about five months of starva- tion. Tubule and constituent cells greatly reduced in size; cells fused into a syncytial mass, enclosing the deeply-staining, pycnotic nuclei. Fig. 28.—Normal gland cell from the albuminous (accessory sexual) gland of the snail, Helix arbustornm. (From Krahelska '13.) This corresponds to a single cell of those shown in Fig. 27a, but more highly magnified ( X800). The nucleus, N, is at the base of the cell; the cell body is largely composed of vacuoles enclosing secretory granules and their associated "chromatoplasts" (chromidial apparatus).
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Keywords: ., bookcentury1900, bookdecade1920, bookpublis, booksubjectnutrition
