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Blood leaves the inferior vena cava and flows directly into the __________.
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40. Circulatory System
Heart Physiology
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Your blood pressure is 120/70. The "120" indicates __________, and the "70" indicates __________.
A
pressure in the left ventricle; pressure in the right ventricle
B
arterial pressure; venous pressure
C
pressure in the left ventricle; pressure in the left atrium
D
pressure in the systemic system; pressure in the pulmonary system
E
arterial pressure during heart contraction; arterial pressure during heart relaxation
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Understand that blood pressure is measured in two numbers: systolic and diastolic pressure.
The first number, '120', represents the systolic pressure, which is the arterial pressure during heart contraction.
The second number, '70', represents the diastolic pressure, which is the arterial pressure during heart relaxation.
Systolic pressure occurs when the heart's ventricles contract, pushing blood into the arteries, while diastolic pressure occurs when the heart is at rest between beats.
Therefore, the '120' indicates arterial pressure during heart contraction, and the '70' indicates arterial pressure during heart relaxation.
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