PHYSIOLOGY
CARDIOVASCULAR PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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maximum pressure in the arteries when the heart contracts
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the pressure in the arteries when the heart relaxes
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Either A or B
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None of the above
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Detailed explanation-1: -The diastolic blood pressure is the minimum pressure experienced in the aorta when the heart is relaxing before ejecting blood into the aorta from the left ventricle (approximately 80 mmHg). Normal pulse pressure is, therefore, approximately 40 mmHg.
Detailed explanation-2: -When the heart pushes blood around the body during systole, the pressure placed on the vessels increases. This is called systolic pressure. When the heart relaxes between beats and refills with blood, the blood pressure drops. This is called diastolic pressure.
Detailed explanation-3: -Blood pressure is measured using two numbers: The first number, called systolic blood pressure, measures the pressure in your arteries when your heart beats. The second number, called diastolic blood pressure, measures the pressure in your arteries when your heart rests between beats.
Detailed explanation-4: -When your heart rests between beats, the pressure in the arteries is the diastolic blood pressure. This is why your blood pressure has two numbers: The top number is the systolic blood pressure. The bottom number is the diastolic blood pressure.