People who discovered and wrote the references of the year where the discovery the blood circulatory system consists of small tubular structures responsible for carrying blood known as blood vessels.
The discovery of the blood circulatory system is primarily attributed to the English physician William Harvey. In 1628, Harvey published his seminal work "Exercitatio Anatomica de Motu Cordis et Sanguinis in Animalibus" (Anatomical Exercise on the Motion of the Heart and Blood in Animals), often abbreviated as "De Motu Cordis." In this work, he described how blood is pumped around the body by the heart and circulates through a closed system of vessels.
Prior to Harvey's findings, the prevailing theory stemmed from the ancient Greek physician Galen, who proposed that blood was continuously produced by the liver and consumed by the body's tissues. Harvey's discovery of the circulation of the blood was revolutionary in the field of medicine and physiology, as it provided a more accurate understanding of the cardiovascular system, including the role of the heart and the network of blood vessels - arteries, veins, and capillaries.
Harvey's discovery was not immediately accepted and faced some opposition initially. However, his work laid the foundation for modern cardiovascular physiology and our understanding of the function and importance of blood vessels in the circulatory system.