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.
(World Issue). Terrorism is a major threat we have in our society today. September 11th has got many peoples attention and many people have noticed terrorism and seen the dangers it can cause.We must first understand the causes of terrorism to prevent such acts of danger from occurring.Religious, ethnic, and government differences are the three main causes of terrorism in the society in which we live in today.Much terrorism is caused by religious beliefs in which people formulate an idea of how the world and everyone in it should be.eptember 11th has got many peoples attention and many people have noticed terrorism and seen the dangers it can cause. We must first understand the causes of terrorism to prevent such acts of danger from occurring.