Leech

TITLE Hirudo Therapy on Sinusitis Patients in Perak. 2.0 INTRODUCTION BACKGROUND The common name for individually of the annelids (segmented worms) is leech, comprising the subclass (or class) Hirudinea. They generate a scurvy sucker on the front (mouth) end of the cylindrical or somewhat dorso-ventrally flattened body, and a larger sucker on the posterior end.1 Leeches be more(prenominal) often than not aquatic and live in freshwater environments, but in that consider overly argon planetal and marine species. Most leeches atomic number 18 caribey. They feed on a variety of invertebrates, such as worms, snails, insect larvae, and crustaceans. However, some argon parasitic dividing line-sucking leeches, feeding on the blood of vertebrates, such as amphibians, reptiles, waterfowl, fish, and mammals (including humans), as well as mollusks. In addition, some leeches ar detritivores, that feeds on dead and decomposing complete fertiliser matter.2. Hemophagic leeches (feeding on blood) clutch to their innkeepers and remain there until they obtain full, at which point they fall down off to digest. They all have an previous (oral) sucker organize from the first six segments of their body, which is employ to bring together to a host for feeding, and mass also release an anaesthetic(a) to prevent the host from noticing the leech.

They use a gang of mucous secretion and suck (caused by concentric muscles in those six segments) to carry on attached and secrete an anti-clotting enzyme into the hosts blood stream.3. Leeches provide values to the ecosystem and to humans. Ecologically, they argon important in timberland and stream food chains, risk as both predator and prey according to the lifetime cycle. Among the predators of leeches are fish, crayfish, turtles, birds, frogs, and even dragonflies and damselflies.4. For humans, the hemophagic leeches whoremaster be used medically, for example, in controlling swelling, as it produces chemicals, that is Hirudin that can serve as an anesthetic agent and prevent blood coagulation. The medicative leech, Hirudo...If you want to get a full essay, order it on our website: Ordercustompaper.com

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