Summary Information: Pulmonary Capillaries. Pulmonary Capillaries: The pulmonary capillaries are tiny blood vessels that surround the alveoli of the lungs. The pulmonary capillaries receive deoxygenated blood from the small branches (arterioles) of the right pulmonary artery and left pulmonary artery and allow for the exchange of blood gasses with the alveoli. In this process, carbon dioxide is released from the blood and fresh oxygen is picked up.
http://www.rightdiagnosis.com/organ/pulmonary_capillaries.htm
Explain the process of gas exchange across the alveoli. The change in partial pressure from the alveoli (high concentration) to the capillaries (low concentration) drives the oxygen into the tissue and the carbon dioxide into the blood (high concentration) from the tissues (low concentration), which is then returned to the lungs and exhaled.
https://www.boundless.com/biology/textbooks/boundless-biology-textbook/the-respiratory-system-39/gas-exchange-across-respiratory-surfaces-220/gas-exchange-across-the-alveoli-836-12081/
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The pulmonary artery brings de-oxygenated blood from the heart and the pulmonary vein returns oxygenated blood to the heart. The exchange of gases occurs in capillaries between these two blood vessels.
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Gas exchange of oxygen and carbon dioxide takes place in the alveoli. Oxygen from the inhaled air diffuses through the walls of the alveoli and adjacent capillaries into the red blood cells. The oxygen is then carried by the blood to the body tissues. Carbon dioxide produced by the body’s metabolism returns to the lung via the blood.
http://www.curoservice.com/parents_visitors/lungs_circulation/structure_alveoli.php
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Terminal Bronchi and Alveoli. The terminal bronchi and alveoli are located at the very end of the conducting zone and the beginning of the respiratory zone in the respiratory system. The bronchi (or bronchus) are the air passages into the lungs that begin at the end of the trachea. There are two bronchi, one for each lung.
http://www.innerbody.com/image/card07.html
Structure and function of the alveoli. At the end of each alveolar duct there are a number of sac-like structures called alveoli, it is within these structures that surfactant is produced. The alveoli are grouped together like a lot of interlinked caves, rather than existing as separate individual sacs.
http://www.curoservice.com/parents_visitors/lungs_circulation/structure_alveoli.php
what surrounds the alveoli
The pulmonary capillaries are tiny blood vessels that surround the alveoli of the lungs.