Circulatory system - Wikipedia
https://en.wikipedia.org/wiki/Circulatory_system
OverviewStructureDevelopmentFunctionClinical significanceOther animalsHistorySee alsoThe circulatory system includes the heart, blood vessels, and blood. The cardiovascular system in all vertebrates, consists of the heart and blood vessels. The circulatory system is further divided into two major circuits – a pulmonary circulation, and a systemic circulation. The pulmonary circulation is a circuit loop from the right heart taking deoxygenated blood to the lungs where it is oxygenated and returned to the left heart. The systemic circulation is a circuit loop that delivers …
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