There are three kinds of blood vessels: arteries, veins, and capillaries. Each of these plays a very specific role in the circulation process. Arteries carry oxygenated blood away from the heart. They're tough on the outside but they contain a smooth interior layer of epithelial cells that allows blood to flow easily.
Answer:
Unemployment, poverty
Explanation:
Poverty- income inequality , nonclinical factors (education, employment, race, ethnicity, and geography) and health care payment and delivery system reforms are some of the factors that are associated with health outcomes in the U.S.
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