The tapeworm class. Part One
In the sexually mature state, in which these worms reside exclusively in the intestines of vertebrates, their body consists of a head armed with suckers, hooks or special slots-clamps, followed by a thin neck and a strobila, made up of several or even several hundred segments. With the help of the head, the worm is held on the intestinal walls. The neck is a growth zone where young segments of the strobila are formed. The segments of the strobila repeat the structure of each other, but the degree of their development is different — in the direction from the neck back they become larger and older. There are no signs of a digestive system. Nutrients (the result of the host's digestion) are absorbed by the entire surface of the parasite's body. Almost the entire volume of the segments is occupied by a complex reproductive system; the posterior segments are filled with numerous mature eggs. A six-pointed larva emerges from the egg, which must penetrate into the intermediate host. Arthropods such as crustaceans, ticks, and insects often act as such, but vertebrates, including mammals, often play this role. There are many tapeworms that pose a threat to the health of pets and humans themselves. In the case of bovine tapeworm and pork tapeworm, the pest of agriculture is humans. The fact is that it is humans who serve as the final host of these tapeworms, and the intermediate hosts, cattle and pigs, respectively, lose their marketable properties when infected precisely because of the danger of shorting the life cycle of the parasite in humans.
The bovine tapeworm in the human intestine can reach enormous sizes: up to 10 meters. The head of this parasite is devoid of hooks and is armed with only four suction cups. The posterior mature segments, breaking off from the strobila, are released along with feces or actively crawl out themselves through the anus, scattering a mass of small eggs. Let's leave aside the medical aspects of the problem, they are obvious. The effect on cattle is associated with the enormous fecundity of the parasite that has grown in the intestines of a sick person. One tapeworm (and there may be several of them in one person) releases approximately 30 segments per day containing 50 million eggs. In rural areas, there is a possibility that some of this mass of eggs will be licked off by a cow's tongue in the pasture. Live betting fans often search for immediate rewards. In such contexts, 1xbet promo code for registration appears in the center of content describing a welcome bonus up to €/$130 for sports. Combined with the casino package of $1950 and 150 free spins, the offer supports both fast-paced betting and relaxed casino play.