. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. Fig. 112. Early development of pinworm, Oxyuris vermicularis. A, newly laid egg containing tadpole-like larva; B, egg 12 hrs. later with nematode-like larva; C, egg with fully developed embryo; D, newly hatched embryo. X 500. (A and B after Braun; C and D after Leuckart.) remarked elsewhere pinworms are believed to be sometimes, and perhaps frequently, the original cause of lesions in the ap- pendix which culminate in appendicitis. The intense itching which they produce by creeping in the vicinity of th
. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. Fig. 112. Early development of pinworm, Oxyuris vermicularis. A, newly laid egg containing tadpole-like larva; B, egg 12 hrs. later with nematode-like larva; C, egg with fully developed embryo; D, newly hatched embryo. X 500. (A and B after Braun; C and D after Leuckart.) remarked elsewhere pinworms are believed to be sometimes, and perhaps frequently, the original cause of lesions in the ap- pendix which culminate in appendicitis. The intense itching which they produce by creeping in the vicinity of the anus is usually the most disagreeable effect of their presence. On account of their situation in the lower part of the intestine, treatment for pinworms should be by drugs which are not rapidly absorbed from the intestine but are relatively insoluble. Thy- mol, male fern and, best of all, oil of chenopodium are effective remedies. Strongyloides, — Another parasite of the intestine which is of wide distribution and locally very common is Strongyloides ster- coralis, a very small worm about one-tenth of an inch in length which bores deep into the mucous membrane of the intestine. The female strongyloid (Figs. 106 and 113A), which is the only sex known, can be recognized by its small size, and microscopi- cally by the chain of six or eight eggs, lying near the middle of. 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 Chandler, Asa C. (Asa Crawford), 1891-1958. New York, J. Wiley & sons, inc. ; London, Chapman & Hall
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmedical, bookyear1918
