. The elements of pathological histology with special reference to practical methods . KiG. 74.—Coccidia kkom thk Human Liver,under powers magnifying («) HOO, {b) 100 diameters(from Leuckart). the liver and in the nuclei of the hepatic cells, in the latterinstance causing pigmentary atrophy of the cells, and even resembling coccidia have also been repeatedly noticed in thenuclei of cancer cells, and have even been assigned an tctiologicalrelationship to the carcinomata. 3. (iii.) Infusoria.—The structure of these is somewhat more com-plicated, inasmuch as the protoplasm separ


. The elements of pathological histology with special reference to practical methods . KiG. 74.—Coccidia kkom thk Human Liver,under powers magnifying («) HOO, {b) 100 diameters(from Leuckart). the liver and in the nuclei of the hepatic cells, in the latterinstance causing pigmentary atrophy of the cells, and even resembling coccidia have also been repeatedly noticed in thenuclei of cancer cells, and have even been assigned an tctiologicalrelationship to the carcinomata. 3. (iii.) Infusoria.—The structure of these is somewhat more com-plicated, inasmuch as the protoplasm separates into a cortical and amedullary substance, and an oral and anal orifice are in most casespresent, as well as special locomotor organs (flagella, cilia, sucking-tubes). The following occur as parasites in the human organism:-— {a) Faramccciwni or Balantidium Cvli (Fig. 75).—This infusorium. Fig. 75.— ok Balantidium Coli (fromGlaus). Highly magnified, a, MouUi; b, Nucleus ; c,Starch granule taken into the interior; d, Foreign bodyin the act of being expelled, is oval, 01 mm. in length, thickly set with hair-like cilia at theperiphery, and provided internally with a nucleus and two contrac-tile vesicles. It is occasionally present in the large intestine andstools (in diarrhoeic disorders). 170 THE ANIMAL PARASITES (b) Ccrcomonas intestinalis (Fig. 76) is a pear-shaped infusoriumprovided with a distinct nucleus, and having at one end flagella, atthe other a spine-like process. It has hitherto been found in theintestine in diseased conditions associated with diarrhoea. -^^


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectpatholo, bookyear1895