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Branch out even smaller than arterioles, have the ability to expand and contract based on blood supply needed in the area.
Aorta ability to act as a compression chamber or reservoir for blood due to distensibility and compliance when rapid ejection form the lv occurs, it effects diminish with aging
Aortic Arch has three main branches
Brachiocephalic artery, Left common carotid and left subclavian artery
returns deoxygenated blood to the lungs, it begins at the pulmonic valve level where bifurcates into the r and l pulmonary arteries a few cm from its orgin
thinner walls in adults with pressure approximatly one sixth of systemic circulation in the normal adult heart
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