. Elements of human physiology. Physiology. THE DUCTLESS GLANDS 515 a rapid contraction may be induced by stimulation of the splanchnic nerves. Functiuns of the Spleen The structure of this organ suggests that the splenic cells must exercise a constant influence on the blood which surrounds them, and that this influence is not purely of ii chemical nature. In the liver and kidneys, which exercise so powerful an effect on the composition of the blood passing through them, the proper cells of the organs are Fiu. Cells fi'oiii a bciaping ol the spleen (Kollikei|. A, splenic pulp-cell contai
. Elements of human physiology. Physiology. THE DUCTLESS GLANDS 515 a rapid contraction may be induced by stimulation of the splanchnic nerves. Functiuns of the Spleen The structure of this organ suggests that the splenic cells must exercise a constant influence on the blood which surrounds them, and that this influence is not purely of ii chemical nature. In the liver and kidneys, which exercise so powerful an effect on the composition of the blood passing through them, the proper cells of the organs are Fiu. Cells fi'oiii a bciaping ol the spleen (Kollikei|. A, splenic pulp-cell containing red blood-corpuscles, b (k = nucleus); B, leucocyte with polymorphous nucleus; C, pulp-cell containing disinte- grated red corpuscles; D, lymphocyte; E, giant-cell; F, nucleated red corpuscles ; G, normal red corpuscle; H, multi- nuclear leucocyte ; J, eosinophile cell. separated from the blood-stream by the capillary wall. Microscopic examination of the cells of the splenic pulp shows us that these are full of particles of brown pigments or fragmeiits of red corpuscles (Fig. 225). In many cases of infectious disease, such as recurrent fever, the splenic cells are observed towards the end of the attack to be full of the organism—spirillum—which is the cause of the disease. In fact, these cells are so arranged that they can take up solid particles held in suspension in the blood-plasma. We must indeed look upon the spleen as the great blood-filter, purifying the blood in its passage by taking up particles of foreign matter and effete red corpuscles. The process ot. 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 Starling, Ernest Henry, 1866-1927. Chicago : W. T. Keener
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