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What are the three propositions about which most economists agree most often (in order from first to third) ?
Tunica Media
The middle, muscular layer of the walls of arteries and veins, responsible for regulating the diameter of the vessels.
Smooth Muscle
A type of muscle found in the walls of internal organs such as the intestines and blood vessels, responsible for involuntary movements.
Celiac Trunk
A major artery that supplies blood to the abdominal organs, including the stomach, spleen, and liver.
Blood Pressure
The pressure of circulating blood against the walls of blood vessels, typically measured in millimeters of mercury (mmHg).
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