College of Massage Therapists of British Columbia (CMTBC) Practice Exam

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Where is blood pressure the highest in the circulatory system?

Coronary artery
Aorta
Subclavian artery
Femoral artery

The correct answer is: Aorta

The aorta is the correct answer because it is the main artery that carries blood directly from the heart's left ventricle to the rest of the body. When the heart contracts during systole, the pressure generated is at its peak in the aorta, where it must overcome the resistance of the arterial system to ensure that blood flows efficiently to all the organs and tissues. This high pressure in the aorta allows it to function effectively as the distribution hub of oxygenated blood, providing the necessary force for circulation. As blood moves away from the aorta and through progressively smaller arteries and arterioles, the pressure gradually decreases. Therefore, the aorta is recognized as the point at which blood pressure is highest in the circulatory system.