what is blood pressure and blood clot
Answers
Answer:
Blood Pressure:
Blood Pressure is the pressure which the blood flowing through the arteries exerts on their walls.
There are two limits of this pressure - Upper Limit (systolic pressure) which is at the time when fresh blood is pushing through the artery as a result of ventricular contraction of the heart.
The lower limit (diastolic pressure) is the one recorded when the wave has passed over.
The normal blood pressure for the adult is 100 - 140 mm (systolic) and 60 - 80 mm (diastolic).
A rise in blood pressure above 140/90 is known as hypertension.(high blood pressure in popular language)
Blood Clot:
When a blood vessel is cut, blood escapes from it.
But soon a clot is formed on the wound and the flow of blood is stopped.
If it were not so, the injured person would bleed to death.