The get hold of of cardio physiology was broken up into five distinct recrudesces all centering on the cardiovascular system. The first lab was physical exercise of the electrocardiogram (ECG). This studied the electrical activities of the marrow by placing electrodes on contrasting parts of the skin. This results in a graph on calibrated paper of these activities. These graphs are usable in the diagnosing of midsection disease and snapper abnormalities. Alongside natural heart abnormalities are those induced by chemical substances. The electrocardiogram is useful in showing how these chemicals adjust the electrical impulses that it induces. The second part of this lab was a computer simulation program to expand a frogs electrocardiogram using confused drugs in an isolated treatedting. The computer program entitled Effects of Drugs on the Frog Heart allowed experimental conditions to be set for specific drugs. The different drugs used were calcium, digitalis, pilocarpine, atropine, potassium, epinephrine, caffeine, and nicotine. Each of these drugs caused a different electrocardiogram and beats per minute reading. The calcium-magnesium ration affects the permeability of the cadre membrane(Fox).
When calcium is placed directly on the heart it results in three physiological functions. The force of the heart increases period the cardiac rate decreases. It also causes the appearance of ectopic pacemakers in the ventricles, producing abnormal rhythms (Fox). Digitalis affect on the heart is actually similar to that of calcium. It inhibits the sodium-potassium pump activated by ATP that promotes the intake of extracellular calcium by the heart. This in return strengthens myocardial contraction (Springhouse). Pilocarpine on the former(a) hand acts to decrease the heart rate. It achieves this by assisting in the release of acetylcholine from the vagus nerve. Atropine on the other hand block acetylcholine receptors thus decreasing cardiac rate. By...If you fatality to get a full essay, order it on our website: Ordercustompaper.com
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