Atrium (heart) similar function. Some animals (amphibians and reptiles) have a three-chambered heart, in which the blood from each atrium is mixed in the single ventricle before being pumped to the aorta. In these animals, the left atrium still serves the purpose of collecting blood from the pulmonary veins. In some fish, the circulatory system is very simple: a two-chambered heart including one atrium and one ventricle. Among sharks, the heart consists of four chambers arranged serially (and therefore called a serial heart): blood flows into the most posterior chamber, the sinus venosus, and then to the atrium which moves it 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