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The aorta is a large, thick-walled artery that emerges from the heart, specifically from the left ventricle, and arches upward before descending through the chest and abdomen. It resembles a sturdy, curved tube, with a diameter of about one inch in adults, and it branches off into smaller arteries that supply blood to the head, arms, and lower body. The wall of the aorta is composed of three layers: the inner intima, the middle media, and the outer adventitia, which give it strength and elasticity. Its appearance can vary slightly based on the individual's anatomy and health conditions.

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