From the vena cava (superior and inferior), the blood enters the heart (right atrium), is pumped into the right ventricle, and then pumped into the lungs (through the Pulmonary Arteries), where carbon dioxide is exchanged for oxygen.
Harlan, Iowa. Harlan is a city in Shelby County, Iowa, United States, along the West Nishnabotna River. The population was 5,106 at the 2010 census. It is the county seat of Shelby County.
Granger, Iowa. Granger is a city in Dallas and Polk counties in the U.S. state of Iowa. The population was 1244 at the 2010 census, up 113% from 583 at the 2000 census. It is part of the Des MoinesâWest Des Moines Metropolitan Statistical Area.