The Inferior vena cava-just like the Superior vena cava -, returns blood to the heart. When blood is returning to the heart, that blood is already circulated in the body, therefore it is already downloaded the oxygen to the body tissues, and picked up the carbon dioxide from them.
Harrington is located in Kent County in Delaware. 1  Population: 3,582. 2  Area: 2.75 sq. miles Land Area: 2.75 sq. miles. 3  Population Density: 1,300.65 people per sq. mile.  Elevation: 49.54 1  ft. Time Zone: Eastern Standard Time (GMT 2  -5) Daylight Savings:  Yes.
According to the 2010 Census, the population of the United States is 308,745,538. Including active duty, national guard and reserves, the population of Americans in uniform is 2,317,761, meaning that less than1 percent, .75 percent to be exact, of the country's population is a member of the military.