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.
Mariposa County where Mariposa resides is 1,462.79 square miles. The resident population of this county is 17,130 and has a population rank of 1,947 out of all the places in the United States. Mariposa has a total of 1,373 people and of those residents there are 612 males and 761 females. The median age of the male population is 39.9 and the female population is 47.8. There are approximately 127 births each year and around 153 deaths.