ANATOMY
LIMB VASCULATURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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At what pressure reading (mm Hg) does the valve to the RIGHT ventricle get pushed open?
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8
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80
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6
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60
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The mitochondria are the powerhouse of the cell
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Explanation:
Detailed explanation-1: -During phase II, the pressure in the ventricle increases to about 80 mmHg, which equals the pressure in the aorta. Point D represents the end of phase II and the beginning of phase III, which is known as the period of relaxation.
Detailed explanation-2: -When the left ventricle (LV) contracts, it generates a systolic blood pressure of 100-140 millimeters of Hg (mm Hg). The aortic diastolic pressure is usually 60-90 mm Hg. The LV/aortic pressure gradient causes blood to pass through the aortic valve.
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