(a) Mention the characteristic features found in the respiratory organs of
the terrestrial organisms.
(b) Name the following:
(1) The blood vessels which carry oxygen-rich blood to the heart.
(ii) The heart chamber that receives de-oxygenated blood.
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The pulmonary circulation is the portion of the circulatory system which carries deoxygenated blood away from the right ventricle, to the ... The vessels of the pulmonary circulation are the pulmonary arteries and the pulmonary veins. ... 1 Structure ... The pulmonary vein returns oxygenated blood to the left atrium of the heart.
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