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 Is Up? Which Way Is Up? Which Way is Up? is a 1977 American comedy film starring Richard Pryor and directed by Michael Schultz. It is a remake of the 1972 Italian comedy film "The Seduction of Mimi" starring Giancarlo Giannini and directed by Lina Wertmüller. Richard Pryor plays three roles: an orange picker who has two women at the same time, the orange picker's father, and a Reverend who gets the orange picker's wife pregnant. When he falls into a union action by mistake, Leroy Jones is laid off from his job picking oranges. The only option given to find work