ABOUT “BLOOD PRESSURE”
What is blood pressure? The heart is a pump that circulates
blood throughout your body. Blood is pumped from the heart into the arteries. This pressure is called the arterial blood pressure, which represents, in general, blood pressure. Blood pressure is indicated by several kinds of pressures such as: systolic pressure that occurs when the heart pumps blood; and diastolic pressure that occurs just when blood returns to the heart.
(Systolic) | (Diastolic) |
|
Artery |
| Artery |
Left atrium | Left atrium |
|
Left | Left | Normal state is restored |
ventricle The artery wall expands. | ventricle | to the artery wall. |
Contraction |
| Dilation |
Blood pressure changes at all times. Blood pressure differs
with age, gender and other factors. Blood pressure of one person is likely to be affected by biorhythm of a day, posture, physical activities, mental activities, stress and atmospheric temperatures.
It is said that blood pressure of a healthy person varies by 20 to 50 mmHg within a day.
Time dayof
pressure value (mmHg) | Systolic blood pressure |
Diastolic blood pressure | |
Blood |
|
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