William Harvey

<p><span style=background-color: rgba(255 255 255 1); color: rgba(128 128 128 1)>Sir William Harvey initiated the modern science of physiology through his explanation of body processes in physical terms. His discovery of the circulation of the blood has few equals in the history of science.</span></p><p><span style=background-color: rgba(255 255 255 1); color: rgba(128 128 128 1)>This English physician's knowledge of comparative anatomy of the heart and blood vessels was beyond that of any of his contemporaries. Indeed the presentation of his theory of blood circulation is a marvel of conciseness reflecting patient observations and clear logic.</span></p><p><span style=background-color: rgba(255 255 255 1); color: rgba(128 128 128 1)>Some of Harvey's discoveries include the following:</span></p><p><span style=background-color: rgba(255 255 255 1); color: rgba(128 128 128 1)>There are no pores between the various parts of the heart-all blood makes a complete circulation.</span></p><p><span style=background-color: rgba(255 255 255 1); color: rgba(128 128 128 1)>The same blood flows through veins and arteries not different blood in each.</span></p><p><span style=background-color: rgba(255 255 255 1); color: rgba(128 128 128 1)>Most of the blood in the arteries is not used up but flows into the veins.</span></p>