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.
General Mesa Information Mesa County where Mesa resides is 3,341.11 square miles. The resident population of this county is 116,255 and has a population rank of 464 out of all the places in the United States. Mesa has a total of 718 people and of those residents there are 376 males and 342 females. The median age of the male population is 43.1 and the female population is 42. There are approximately 1,473 births each year and around 1,136 deaths.