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.
What is Terrorism? Car bombings are commonly used as a weapon of terror in the volatile countries of the Middle East. Not all Muslims are terrorists, and not all terrorists are Muslim. A person who commits an act of terrorism may be arrested for his or her actions. Al-Shabaab is a terrorist group based out of Somalia.