. A manual of clinical diagnosis by means of microscopical and chemical methods, for students, hospital physicians, and practitioners . , 1861, vol. xx. p. 306. BACTERIOLOGY AND PARASITOLOGY OF THE BLOOD. 135 Filariasis. Filaria sanguinis hominis (Lewis): si/n., Filaria Wuohereri (daSilva Lima) ; Filaria Bancrofti (Cobbold) ; Filaria Mansoni; Trichinacystica (Salisbury); Trichina sanguinis hominis aocturna (Manson). Several varieties of the parasite (Fig. 28), which belongs to theclass of nematodes, have been observed in the blood of man. Amongthese arc the Filaria sanguinis hominis nocturna,
. A manual of clinical diagnosis by means of microscopical and chemical methods, for students, hospital physicians, and practitioners . , 1861, vol. xx. p. 306. BACTERIOLOGY AND PARASITOLOGY OF THE BLOOD. 135 Filariasis. Filaria sanguinis hominis (Lewis): si/n., Filaria Wuohereri (daSilva Lima) ; Filaria Bancrofti (Cobbold) ; Filaria Mansoni; Trichinacystica (Salisbury); Trichina sanguinis hominis aocturna (Manson). Several varieties of the parasite (Fig. 28), which belongs to theclass of nematodes, have been observed in the blood of man. Amongthese arc the Filaria sanguinis hominis nocturna, Filaria sanguinishominis diurna, or Filaria sanguinis hominis, var. major, and Filariasanguinis hominis, var, minor. The female of Filaria nocturna, according to Mansons description,is a long, slender, hair-like animal, quite three inches in length,but only one one-hundredth inch in breadth, of an opaline appear-ance, looking as it lies in the tissues like a delicate thread of catgut,animated and wriffffline. \ narrow alimentarv canal runs from of? o J the simple elub-like head to within a short distance of the tail, the Fig. Filaria sanguinis hominis, showing sheath. (After Lewis.) remainder of the body being almost entirely occupied by the repro-ductive organs. The vagina appears about one twenty-fifth of aninch from the head ; it is very short, and bifurcates into two uterinehorns, which, stuffed with embryos in all stages of development, runbackward nearly to the tail (Osier). The male worm is rarelyseen, and is much smaller than the female. While the adult parasitehas its habitat in the lymphatic channels, the embryos, which are setfree in enormous numbers, invade the blood-current, in which theymay readily be found at night; during the day an examination ofthe blood will usually yield negative results. This periodicity may,however, be reversed by having the patient sleep in the daytime andbe about at night. Each embryo has an envelope of its own, whichis hyaline in a
Size: 2200px × 1135px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectdiagnos, bookyear1902
