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Q. How does the heart impel the blood?
The heart is a muscular organ that contains chambers right ventricle and right atrium right ventricle and and left atrium through which blood passes. The blood enters the heart in the atria, goes to the ventricles and then leaves the organ, the blood is pumped out of the heart by the contraction of the muscle fibers that form the ventricular walls the contraction reduces the ventricle volume thus increasing the internal pressure and the blood then flows to the exit vessels pulmonary artery for the right ventricle and aorta for the left ventricle, When ventricular muscle fibers distend the ventricles regain their original size and receive new blood flow coming from the atria.
Stages of Research Process: Planning Stage The planning stage of research process includes a series of interdependent steps consisting of 1) conceptualizatioq of the r
Receptors are sense organs that receive stimuli. On the basis of their location in body receptors are of following types - 1 . Extero receptor - Located at or near t
Q. What is the use of Uncoated polyvinyl chloride? Uncoated polyvinyl chloride (PVC) and polyvinylidene chloride (PVDC): PVC and PVDC are closely related plastics that are a
How does self infection by tapeworms occur? Taeniasis patients might be develop the most severe form of the worm infection, cysticercosis, because their feces have eggs and pre
What is the classification scheme for echinoderms?
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Why is the reaction of ethane and chlorine not a free-radical addition reaction? Because no free radicals are include in the reaction process only carbo cations and Cl- are evo
Head stream of Highland brook zone This is formed by a number of small streams, which originate from a marsh, a spring or a glacier. This is a small shallow zone with an irreg
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