2. in respiratory physiology, the process of exchange of air between the lungs and the ambient air; see alveolar ventilation and pulmonary ventilation. Learn Pulmonary circuit definition in biology with the explanation to review What is Pulmonary circuit? PVD affects the veins and arteries that connect the lungs and heart. Air enters the respiratory system through the mouth and the nasal cavity, passing through the pharynx then larynx (where sounds are produced for speech) and finally the trachea which enters the chest cavity. St. Louis, MO. Through the pulmonary artery venous blood of the right ventricle goes to the lungs for oxygenation. The pulmonary circulation is the portion of the circulatory system which carries deoxygenated blood away from the right ventricle, to the lungs, and returns oxygenated blood to the left atrium and ventricle of the heart. Pulmonologists do not perform lung surgeries, but they may perform lung procedures, such as a bronchoscopy, a procedure that allows a medical professional to visualize the inside of the lungs. Following is a rundown of how blood moves during pulmonary circulation. General Biology, 11th Edition. Pulmonary Exchange of Gases (External Respiration): External respiration takes place between blood in alveolar capillaries and alveolar air. Systemic veins Systemic veins drain the tissues of the body and deliver deoxygenated blood to the heart. Circulatory system and the heart. The pulmonary veins return the arterialized blood from the lungs to the left atrium of the heart.They are four in number, two from each lung, and are destitute of valves.. Some patients have a history of exposure to irritating dusts or fumes. Credit: DEA PICTURE LIBRARY/Getty Images. pulmonary definition: 1. relating to the lungs (= organs used for breathing): 2. relating to the lungs (= organs used…. As such, bronchioles are one of the smallest airways in the respiratory tract, and lead directly to the alveolar ducts which house the alveoli responsible for exchanging gases with the blood. St. Louis, MO. Pulmonary definition is - of, relating to, affecting, or occurring in the lungs. His face is swollen, as some gland in his neck has bloated and somehow he don't enjoy what he see in the mirror he says. Definition: Veins are vessels that bring blood to the heart. There are five main classifications of PH. Pulmonary and Systemic Circuits of the Circulatory Sytem. See more. The two pulmonary arteries differ in length and anatomy. See also respiration (def. Pulmonary medicine: The branch of medicine that deals with the causes, diagnosis, prevention and treatment of diseases affecting the lungs. Pulmonary artery disease is a subcategory of pulmonary vascular disease (PVD). Khan Academy is a 501(c)(3) nonprofit organization. The lungs are organs of the respiratory system that allow us to take in and expel air. noun Anatomy. One type of pulmonary hypertension is pulmonary arterial hypertension (PAH). Medical Definition of Pulmonary vein. pulmonary definition: 1. relating to the lungs (= organs used for breathing): 2. relating to the lungs (= organs used…. Learn about Difference Between Pulmonary Artery and Pulmonary Vein topic in Biology in details explained by subject experts on vedantu.com. 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