Leeches :: essays research papers

LeechesThe phlebotomise is a segmented worm that in all actuallity has a really vivid life. From being used by doctors to just being blood-sucking parasites, the sponge is a true wonder of the mind.The leech has a series of ring-like segments that acquire up its bodystructure. They maybe from 2 to 20 centimeters long and arrive the ability toshorten or lengthen their bodies. They mostly come in colors of black, redor brown, sometimes with stripes or spots. They be extremely sensitive to touch, temperatue, and drying step forward. Also, they have clusters of cells on thefront end thatare light-sensative, close like eyes. Leeches unremarkably live in dark, damp areas such as the bottoms of lakes, jungels, or shallow streams.Finally, the leech is a Hermaphrodit, containing bot male and female familiarreproductive organs.With a sucker at both ends of its body, the leech usually lives as a parasite, feeding upon the blood and tissue of other animals, or on decayingplant and ani mal materials. It has a mouth centered on the front sucker withteeth in some cases. Leeches, that are parasites, connect to their victim with thefront sucker, create a wound, then suck out blood with, usually, both suckers.Blood-sucking leeches give out a liquid subject called Hirudin. This chemical prevents the blood from thickening and enables the blood to be easily sucked by the leech.Doctors once used leeches, or what they called medicinal leeches, to remove blood from patients in an orderly manner. The first clinical use of leeches in this fashion occured approximatly 2,500 old age ago. Since the leeches bite produces a small cleeding wound ,that mimics a venous circulation in an area of compromised tissue, the leech is particlarly valuable for reconstruction surgery. Special properties of the bite, such as the chemical hirudin, allow continued bleeding for up to 48 hours afterward the leech