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.
Population by Place in Iowa There are 1,009 places in Iowa. This section compares Waukee to the 50 most populous places in Iowa. The least populous of the compared places has a population of 7,907. Total Population by Place#9