The given diagram shows the method of measuring the blood pressure of a healthy person. At phase III, sounds are no longer heard, brachial artery:
Correct answer: B. Is opened
- A. Is closed
- B. Is opened
- C. is bearing the greatest pressure
- D. Shows a continuous change in the diameter
Explanation
When the cuff pressure drops below diastolic pressure, the artery is no longer compressed, blood flow becomes laminar, and Korotkoff sounds disappear.so B is the correct option.
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The human heart is a four chambered muscular pump that maintains double circulation through the pulmonary and systemic circuits. Questions cover atria, ventricles, valves, major blood vessels, the cardiac cycle, pressure changes, the conduction system and ECG, while distinguishing arteries and veins from the chambers that receive or eject blood.
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