Question
Explain blood pressure and pulse.
✓
Answer
During systole (contraction of the heart), the ventricles contract and force the blood to flow into the arteries and these arteries carry the blood to the entire body. The blood flowing in the arteries exerts pressure on their elastic walls. This pressure is called blood pressure.
At the time of contraction of the ventricles the blood pressure is higher and is called systolic pressure. When there is relaxation in the ventricles then this pressure decreases. The pressure lower than this is called diastolic pressure. The instrument that measures blood pressure is called Sphygmomanometer.
A blood pressure reading of 120/80 means that the person's systolic pressure is 120 mm Hg and diastolic pressure is 80 mm Hg . A typical reading for a healthy adult is $120 / 80 mm Hg$.
The difference between diastolic and systolic pressures can be felt as the pulsation of the arteries at the wrist.
This heartbeat on the wrist is called pulse. The number of beats per minute (due to contraction) felt over a location on the wrist is called pulse rate. This number and the number of heart beats is equal. That is, about 72 beats per minute in a normal adult.
At the time of contraction of the ventricles the blood pressure is higher and is called systolic pressure. When there is relaxation in the ventricles then this pressure decreases. The pressure lower than this is called diastolic pressure. The instrument that measures blood pressure is called Sphygmomanometer.
A blood pressure reading of 120/80 means that the person's systolic pressure is 120 mm Hg and diastolic pressure is 80 mm Hg . A typical reading for a healthy adult is $120 / 80 mm Hg$.
The difference between diastolic and systolic pressures can be felt as the pulsation of the arteries at the wrist.
This heartbeat on the wrist is called pulse. The number of beats per minute (due to contraction) felt over a location on the wrist is called pulse rate. This number and the number of heart beats is equal. That is, about 72 beats per minute in a normal adult.
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