What is a normal blood pressure?

The discovery of blood pressure

Although in his seminal work Exercitatio Anatomica de Motu Cordis et Sanguinis in Animalibus published in 1628 William Harvey (1578– 1657) had assumed a driving force for the circulation, it took >100 years until blood pressure was truly measured.1 In 1733, Steven Hales (1677–1761) inserted, with the help of his assistant, in an awake horse a glass cannula into the carotid artery and for the first time determined the level of blood pressure in a living organism, and demonstrated its changes during the cardiac cycle……….

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