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
Which Way to the Front? Which Way to the Front? Which Way to the Front? is a 1970 American comedy film starring Jerry Lewis. Brendan Byers III is a rich playboy who enlists to fight in the war against the Axis powers, but is classified 4-F. He really wants to fight, so he enlists other 4-Fs and some loyal volunteers from his own service staff and forms his own army. He finances their training and equipment. Once completed, they travel to the front in Italy, with Byers impersonating a Nazi general named Eric Kesselring. The plan is to pull back the German lines, since the