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Troiani, Diana; Manni, Ermanno – Advances in Physiology Education, 2011
Using an excised pig heart preparation with tubes, a manometer, and a visualizing apparatus, Giulio Ceradini, an Italian physiologist working in the years of 1871-1872 in Carl Ludwig's famous laboratory in Leipzig, Germany, illustrated the mechanism of closure of the semilunar valves. He was the first to conceive that the closure of the heart…
Descriptors: Foreign Countries, German, Animals, Physiology