The systolic part of normal blood pressure showing 120/80 Hg actually points to the pressure that ___

Forces blood into lungs

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Draws blood from lungs

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Forces blood into arteries

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Forces blood into veins

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Solution

The correct option is C
Forces blood into arteries

Blood pressure usually has two limits - .the upper limit or the systolic pressure is when the fresh blood is pushing through the artery due to the contraction of the ventricles and the lower limit is the diastolic pressure which is recoreded after the wave of contraction has passed over. A reading of 120/80 mm Hg is considered normal.

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Question 116 (ii)

Health Application A doctor reports blood pressure in millimetres of mercury (mm Hg) as a ratio of systolic blood pressure to diastolic blood pressure (such as 140 over 80). Systolic pressure is measured when the heart beats and diastolic pressure is measured when it rests. Refer to the table of blood pressure ranges for adults.
Manohar is a healthy 37 yr old man whose blood pressure is in the normal category.
If Manohar's systolic blood pressure is 102 mm Hg, then use the ratio from part (a) to predict his diastolic blood pressure.

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