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
Ingrid (given name) but picked up again in the late 1970s, peaking above 1.5% in the 1990s. The name became popular outside of Scandinavia from the 1940s due to the fame of Ingrid Bergman. Ingrid (given name) Ingrid is a Scandinavian, German, and Dutch feminine given name. It continues the Old Norse name "Ingiríðr", which was a short form of "Ingfríðr", composed of the theonym "Ing" and the element "fríðr" "beloved; beautiful" common in Germanic feminine given names. The name Ingrid (more rarely in the variant "Ingerid" or "Ingfrid"; short forms "Inga, Inger, Ingri") remains widely given in all of Scandinavia, with the