. Public health and preventive medicine. a). When ripe the terminal proglottisis extruded with the faeces, and, its walls decaying,the eggs are set free. These have now to reach their intermediatehost. They are absorbed along with drinking-water, herbage, etc. From the stomach of theintermediate host the embryo, having developed sixbooklets, bores its way into various tissues of thebody, especially the liver, and becomes resulting cyst (Fig. 18, b) is the hydatid, and its fluid is cyst is lined by a germinal layer, on which small elevations appear,which become
. Public health and preventive medicine. a). When ripe the terminal proglottisis extruded with the faeces, and, its walls decaying,the eggs are set free. These have now to reach their intermediatehost. They are absorbed along with drinking-water, herbage, etc. From the stomach of theintermediate host the embryo, having developed sixbooklets, bores its way into various tissues of thebody, especially the liver, and becomes resulting cyst (Fig. 18, b) is the hydatid, and its fluid is cyst is lined by a germinal layer, on which small elevations appear,which become hollow, and are the brood capsules. From* the wall of a broodcapsule the bead or scolex grows and develops its suckers and hooks (Fig. 18,c and p). A large number of heads may be found in one brood is thus a large cyst containing brood capsules, which in their turn con-tain scolices. In addition, from the outer, or more commonly the inner layerof the large cyst, daughter cysts are formed, which in structure are similar to. Wig. 17.—Ova of h. hepaticum, liver fluke, x 200 diameters. 8o MEDICINE
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectprevent, bookyear1902
