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.
Alpena has a total of 11,304 people and of those residents there are 5,320 males and 5,984 females. The median age of the male population is 37.1 and the female population is 41.9. There are approximately 351 births each year and around 375 deaths.