The secret of the salivary glands of leeches contains a physiologically active substance, providing incoagulability blood, which has already managed to suck leech. The secret is released gradually in the process of blood-sucking, and with the blood gets into the intestinal canal leech saliva which is involved in the regulation of digestion. Salivary gland secretion coats the walls of wounded vessels. That is why from the wound, which remains after the session girudoterapii may, within 24 hours to trickle blood. This should not be afraid, besides the majority of people bleeding ends much sooner, in 4-6 hours. Drunk leech blood enters the stomach, which looks like a gut with 10 pairs of appendages. These processes take up a large part of the body of this natural healer. Between the base of the back of a pair of processes is the so-called assimilates department intestine, whose name speaks for itself – it absorbs the blood. From it begins hindgut, which is similar to direct a thin tube and opens poroshitsey above the rear sucker. In the intestine leech blood for a long time in a liquid state and digested for a long time, so the interval between acts of bloodsucking can reach 24 months. There are cases when the leech nice transferred hunger and at longer intervals between their “lunch”. Not bad, right? That jealous, then sorry, scientists thought about this fact and examined him: “It is very interesting, as it turns out she?” Many biologists have devoted this puzzle months, and even years of research, was forced to go hungry leeches and a half years. Leeches lost weight 76-78% of body weight, but nevertheless continued safely fly in the bank. Researchers medicinal leeches who turned them in starved tormentors, shrugged: “do not understand!” Other scientists who do not spend their time wasted on experiments with leeches, not dismembered them in order to find out what’s inside, not forcing them to starve, just philosophically reflect on their secret speculated: “Maybe life support leech occurs due to something else, for example, replacement substances parenchyma developed? ” Opinions expressed many, some of them contradict each other, but in life leech dependence on the frequency of acts of blood-sucking until the end and has not been elucidated. amount of blood sucked leech judged mainly on the emission rate of the liquid on the surface of the leech body.But never found faithful in scientific terms the answer to the question: how is it that way in the digestive system of the leech falls victim’s blood, which is enriched by red blood cells? We can say that the mechanisms of digestion leeches and still remain virtually unexplored.Researchers of the internal structure of the body leech found out that in the digestion of blood inside her involved peculiar enzymes, which are produced by its microflora of the alimentary canal.