Heart and along the conduction system of the heart. The heart receives blood low in oxygen from the systemic circulation, which enters the right atrium from the superior and inferior venae cavae and passes to the right ventricle. From here it is pumped into the pulmonary circulation, through the lungs where it receives oxygen and gives off carbon dioxide. Oxygenated blood then returns to the left atrium, passes through the left ventricle and is pumped out through the aorta to the systemic circulation−where the oxygen is used and metabolized to carbon dioxide. The heart beats at a resting rate close to
Henrietta (given name) Henrietta (given name) Henrietta is a feminine given name, derived from the male name Henry. The name is an English version of the French "Henriette", a female form of "Henri". A short version of the name is Harriet, which was considered the "spoken form" of Henrietta, much as Harry was considered the "spoken form" of Henry in medieval England. All these names are derived from Henrik, which is ultimately derived from the Germanic name "Heimiric", derived from the word elements "heim", or "home" and "ric", meaning "power, ruler." The male name Henry was first used in England by Normans. Henrietta