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.
As of the 2010 United States Census, there were 1,526,006 people, 590,071 households, and 352,272 families residing in the consolidated city-county of Philadelphia, Pennsylvania.The population density was 4,337.3/kmÂ² (11,233.6/miÂ²). There were 661,958 housing units at an average density of 1,891.9/kmÂ² (4,900.1/miÂ²).s of the 2010 Census there were 15,963 Dominicans in Philadelphia, up from 4,337 in 2000. Dominicans are now the second-largest Hispanic group in Philadelphia and the city has the 6th largest Dominican population in the US.