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.
Lenawee County ... Adrian is located in Lenawee County and is the County Seat for Lenawee County. The county had a population of 99,892 people at the 2010 Census. With it's population of 21,133 people, Adrian represented 21.16% of the county's total. In addition, where the city of Adrian has a population density of 2,608 people per square mile [1,007 people/kmÂ²], Lenawee County averages 133.3 people per square mile [51.5 people/kmÂ²].