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William Harvey (1 April 1578 – 3 June 1657) [1] was an English physician who made influential contributions to anatomy and physiology. [2] He was the first known physician to describe completely, and in detail, pulmonary and systemic circulation as well as the specific process of blood being pumped to the brain and the rest of the body by the heart (though earlier writers, such as Realdo ...
Among Galen's major contributions to medicine was his work on the circulatory system. He was the first to recognize that there are distinct differences between venous (dark) and arterial (bright) blood. In addition to these discoveries, Galen postulated much more about the nature of the circulatory system. He believed that blood originated in ...
In vertebrates, the circulatory system is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the body. [1] [2] It includes the cardiovascular system, or vascular system, that consists of the heart and blood vessels (from Greek kardia meaning heart, and Latin vascula meaning vessels).
The 16th and 17th centuries also witnessed significant advances in the understanding of the circulatory system, as the purpose of valves in veins was identified, the left-to-right ventricle flow of blood through the circulatory system was described, and the hepatic veins were identified as a separate portion of the circulatory system.
William Harvey (1578–1657) — English physician, described the circulatory system; Henry Heimlich (1920–2016) — inventor of the Heimlich maneuver and the Vietnam War-era chest drain valve; Orvan Hess (1906–2002) — fetal heart monitor and first successful use of penicillin; Hippocrates (c. 460 –370 BCE) — Greek father of medicine
The following is a list of people who are considered a "father" or "mother" (or "founding father" or "founding mother") of a scientific field.Such people are generally regarded to have made the first significant contributions to and/or delineation of that field; they may also be seen as "a" rather than "the" father or mother of the field.
According to Galen, the venous system was separate from the arterial system except when they came in contact through the unseen pores. The newly discovered manuscript of Ibn al-Nafis was translated by Max Meyerhof. It included critiques of Galen's theory, including a discussion on the pores of the heart.
1200 – Abd al-Latif al-Baghdadi observes and examines a large number of skeletons, and he discovered that Galen was incorrect regarding the formation of the bones of the lower jaw and sacrum. 1242 – Ibn al-Nafis carries out autopsies which leads him to the discovery of pulmonary circulation and the circulatory system.