Leech

TITLE Hirudo Therapy on Sinusitis Patients in Perak. 2.0 INTRODUCTION setting The common name for each of the annelids (segmented worms) is leech, comprising the subclass (or class) Hirudinea. They be possessed of a small-scale sucker on the introductory (mouth) end of the cylindrical or somewhat dorso-ventrally flattened body, and a larger sucker on the posterior end.1 Leeches be more often than not aquatic and live in freshwater environments, but in that heed overly argon terrestrial and marine species. Most leeches be piranhay. They feed on a variety of invertebrates, such as worms, snails, insect larvae, and crustaceans. However, some are parasitic phone 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 are detritivores, that feeds on dead and decomposing organic fertiliser matter.2. Hemophagic leech es (feeding on blood) attach to their hosts and remain there until they capture full, at which point they fall off to digest. They all have an previous (oral) sucker formed from the first six segments of their body, which is apply to bring together to a host for feeding, and female genital organ also release an anaesthetic(a) to prevent the host from noticing the leech.

They use a faction of mucous secretion and suction (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 are important in woods and stream food chains, luck as both predator and prey acco! rding to the animation cycle. Among the predators of leeches are fish, crayfish, turtles, birds, frogs, and even dragonflies and damselflies.4. For humans, the hemophagic leeches send word be used medically, for example, in controlling swelling, as it produces chemicals, that is Hirudin that can serve as an anesthetic and prevent blood coagulation. The medicative leech, Hirudo...If you want to get a full essay, order it on our website: OrderEssay.net

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