ANATOMY & PHYSIOLOGY A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site pulmonary artery A large artery originating from the superior surface of right ventricle and carrying deoxygenated blood from the heart to the lungs. The pulmonary artery is the exception to the rule that arteries carry oxygenated blood from the heart to other parts of the body. The pulmonary trunk (pulmonary artery or main pulmonary artery) is approximately 5 cm (2 inches) in length and 3 cm (1.2 inches) in diameter. It then branches into two pulmonary arteries (left and right), which deliver deoxygenated blood to the corresponding lung. Related entry    • pulmonary arterial hypertension Related category    • ANATOMY AND PHYSIOLOGY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP