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Answers
Answer:
The pulmonary arteries and the pulmonary veins are the vessels of the pulmonary circulation; which means they are responsible for carrying the oxygenated blood to the heart from the lungs and carrying the deoxygenated blood from the heart to the lungs.
The pulmonary circulation is different than systemic in context that within the pulmonary circulation veins carry oxygenated blood, whereas the arteries carry deoxygenated blood. The difference originates from the fact that every blood vessel that transports the blood from the periphery to the heart is a vein, whereas the vessel that transports the blood from the heart to the periphery is an artery.
Key facts
Pulmonary arteries
Right ventricle -> pulmonary trunk -> right and left pulmonary arteries
Purpose: deliver deoxygenated blood to the respective lung
Pulmonary veins
Lung capillaries -> 4 pulmonary veins (2 from each lung) -> left atrium
Purpose: deliver oxygenated blood to the left ventricle which will distribute it to the body
Clinical relations
Pulmonary hypertension, heart failure, pulmonary embolism, hypoxia
In this article, we are going to discuss the gross and microscopic anatomy, structure, and function of the pulmonary vessels along with some high-yield clinical notes.