. The elements of pathological histology with special reference to practical methods . ^^c Fig. 87.—Male of ANCHvi-osTOMiM Dcodenale (from Schultheiss). x , Head with oral capsule; b, (Esophagus; c. Intestine: d. Anal glands; <•.Cervical glands; f. Skin; (/, Muscular layer; h. Excretory pore; i, tri-lobedbui-sa; \\ Ribs of the bursa; /, Testicular canal; m, Vesicula seminalis; n,Ejaculatory duct; o, Furrow in latter; ji, Penis ; q. Sheath of penis. M 178 THE ANIMAL PARASITES is almost completely split at the back, and carries four incurved andtwo perpendicular teeth. The male (Fig. 87),
. The elements of pathological histology with special reference to practical methods . ^^c Fig. 87.—Male of ANCHvi-osTOMiM Dcodenale (from Schultheiss). x , Head with oral capsule; b, (Esophagus; c. Intestine: d. Anal glands; <•.Cervical glands; f. Skin; (/, Muscular layer; h. Excretory pore; i, tri-lobedbui-sa; \\ Ribs of the bursa; /, Testicular canal; m, Vesicula seminalis; n,Ejaculatory duct; o, Furrow in latter; ji, Penis ; q. Sheath of penis. M 178 THE ANIMAL PARASITES is almost completely split at the back, and carries four incurved andtwo perpendicular teeth. The male (Fig. 87), 6 to 10 mm. in length,possesses a trilobed bursa at its posterior extremity, whereas thecorresponding end of the female, which is as much as 18 mm. inlength, runs out into a thin and pointed spine. The eggs (Fig. 88) are. Fig. SS.— Ova of Anchylostomum Duodexale(from Perroncito and Suhultheiss). x 200. stages in the process of segmentation. oval, 005 to 0-06 mm. long, and 0-03 to 0-04 mm. broad. Theircontents are either still unsegmented or already show two or moresegmentation spheres. Outside the human body they develop veryrapidly, so that embryos can be found in the evacuated faeces evenin twenty-four to forty-eight hours. The worm is chiefly, and very frequently, found in the tropics(Egypt), but in more recent times has been repeatedly detected inour own regions also, especially in labourers employed in tunnellingand mining, and in brick-makers. As it bores its way into themucous membrane of the duodenum and small intestine with itsteeth, and sucks itself full of blood, it may cause a severe degreeof anaemia w^hen present in any considerable numbers. {(l) Trichocejjhalus dispar, or whip-vjorm, is from 4 to 5 cm. its anterior and longer half it is of thread-like slenderness a
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectpatholo, bookyear1895
