. A text-book upon the pathogenic Bacteria and Protozoa for students of medicine and physicians. Bacteriology; Pathogenic bacteria; Protozoa. 500. Fig. 179.—Developmental cycle of Plasmodium vivax, the tertian malarial parasite. Figures i to 17 are magnified 1200 diameters; 18 to 27, only 600 diameters: i, Sporozoit; 2, penetration of a sporozoit into a red blood-corpuscle; 3 and 4, schizont developing in the red blood-corpuscles; s and 6, nuclear divi- sion of the schizont; 7, free merozoits; 8 (following the arrows to the left to 3), merozoits entering red blood-corpusdes, and multiplying by


. A text-book upon the pathogenic Bacteria and Protozoa for students of medicine and physicians. Bacteriology; Pathogenic bacteria; Protozoa. 500. Fig. 179.—Developmental cycle of Plasmodium vivax, the tertian malarial parasite. Figures i to 17 are magnified 1200 diameters; 18 to 27, only 600 diameters: i, Sporozoit; 2, penetration of a sporozoit into a red blood-corpuscle; 3 and 4, schizont developing in the red blood-corpuscles; s and 6, nuclear divi- sion of the schizont; 7, free merozoits; 8 (following the arrows to the left to 3), merozoits entering red blood-corpusdes, and multiplying by schizogony 3 to 7; after longer continuance of the disease the sexual forms arise; ga to 12a, macrogametocytes; gb to 12b, microeametocytes still in the circulatory blood of man. If the macrogametocytes (12a) are not taken into the alirnentary canal of the mosquito, they multiply parthenogeneticaUy (12a, 13c to 17c) and the resulting merozoits (17c) become schizonts (3 to 7). The figures below the dotted line represent what takes place in the alimentary canal of anopheles (13 to 17); 13b and 14b the formation of microgametocytes; 13aand 13b, matura- tion of the macrogametes; isb a microgamete; 16, fertilization; 17, ookinete;. 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 McFarland, Joseph, 1868-. Philadelphia and London, W. B. Saunders Company


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbacteri, bookyear1919