Function. While veins usually carry deoxygenated blood from tissues back to the heart, in this case, pulmonary veins are among the few veins that carry oxygenated blood instead. Oxygenated blood from the lungs is circulated back to the heart through the pulmonary veins that drain into the left atrium.unction. While veins usually carry deoxygenated blood from tissues back to the heart, in this case, pulmonary veins are among the few veins that carry oxygenated blood instead. Oxygenated blood from the lungs is circulated back to the heart through the pulmonary veins that drain into the left atrium.
There are five major problems in defining the term 'terrorism' and building a consensus. The first major problem faced by the academics and even the nations in defining terrorism is the relativist enmesh of the concept. For one it is a freedom fighting, while for the other it is terrorism.
Email. America may have declared a new war against terrorism, but it turns out that no one is all that sure just what terrorism is. That includes the U.S. government. No one definition of terrorism has gained universal acceptance, the State Department said in a report on world terrorism in 2000.The key elements to terrorism are obvious to many â violence, noncombatant targets, intention of spreading fear, and political aims.mail. America may have declared a new war against terrorism, but it turns out that no one is all that sure just what terrorism is. That includes the U.S. government. No one definition of terrorism has gained universal acceptance, the State Department said in a report on world terrorism in 2000.