On the other hand, pulmonary veins are large blood vessels that receive oxygenated blood from the lungs to delivery to the rest of the body. There are 4 total pulmonary veinsâwith 2 pulmonary veins coming from each lung, left and rightâthat empty into the left atrium of the heart.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.
Since the time of the red scare led by Joseph McCarthy, the term McCarthyism has entered the American vernacular as a general term for the phenomenon of mass pressure, harassment, or blacklisting used to instill conformity with prevailing political beliefs.
Sartre asserts that the key defining concept of existentialism is that the existence of a person is prior to his or her essence.The term  existence precedes essence  subsequently became a maxim of the existentialist movement.idely considered one of the defining texts of the Existentialist movement, the book is based on a lecture called Existentialism is a Humanism that Sartre gave at Club Maintenant in Paris, on October 29, 1945.