Lung Capillaries. 20-40. The alveolar oxygen partial pressure is lower than the atmospheric O 2 partial pressure for two reasons. 1  Firstly, as the air enters the lungs, it is humidified by the upper airway and thus the partial pressure of water vapour (47 mmHg) reduces the oxygen partial pressure to about 150 mmHg.
Sponsored Topics. Phenix is a town in Charlotte County, Virginia, United States. The population was 200 at the 2000 census. Phenix is located at 37Â°4â²51â³N 78Â°44â²50â³W / 37.08083Â°N 78.74722Â°W / 37.08083; -78.74722 (37.080841, -78.747183). According to the United States Census Bureau, the town has a total area of 1.1 square miles (3.0 kmÂ²), all of it land.
Northumberland County is a county located in the Commonwealth of Virginia. As of the 2010 census, the population was 12,330. Its county seat is Heathsville. The county is located on the Northern Neck and is part of the Northern Neck George Washington Birthplace AVA winemaking appellation.he area was occupied at the time of English settlement by the Algonquian-speaking historic tribes of the Wicocomico and Chickacoan. The county was created by the Virginia General Assembly in 1648 during a period of rapid population growth and geographic expansion.