Blood Pressure Questions.?!
Question: 1.What is the effect of posture on blood pressure? Why do you think this effect occurs? Is this effect the same for both systolic and diastolic pressures?
2. What is the effect of activity on blood pressure? Why do you think this effect occurs? Does activity affect systolic and diastolic pressures in the same way?
3. What is the effect of increased activity on blood pressure Why do you think this effect occurs? Does increased activity affect systolic and diastolic pressures in the same way?
Answers: 1.What is the effect of posture on blood pressure? Why do you think this effect occurs? Is this effect the same for both systolic and diastolic pressures?
2. What is the effect of activity on blood pressure? Why do you think this effect occurs? Does activity affect systolic and diastolic pressures in the same way?
3. What is the effect of increased activity on blood pressure Why do you think this effect occurs? Does increased activity affect systolic and diastolic pressures in the same way?
1- posture draw the blood by gravity, and pole it according with the new position, sudden movements-like when u get up from ur bed- cause blood to pole in lower limbs, which u can feel it sometimes by this tiny blackout, as a result of decreasing blood on the brain by the gravity for a while.
however body compensate that new situation quickly.
posture affect diastolic pressure more than systolic, but both are affected.
2- activity cause the heart rate to increase, when the heart rate increased the stroke volume - amount of blood ejected from the heart by each beat multiplied by the heart rate- increased, so blood pressure should increase as a result.
when activity decreased opposite thing happened.
there is other factors controls blood pressure as the diameter of the blood vessels which us termed as vascular resistant, body use this property of the blood vessels for further control the BP, the more the blood vessels are narrow, the higher the BP. also blood viscosity and so on.
activity majorly affect the diastolic BP.
3- answer of this question is included in section 2 here, and also increased activity sometimes co occur with adrenal gland secretion- epinephrine- which cause increase of heart rate, and peripheral vasoconstriction, and increase of blood supply to major organs-brain, lung, liver, heart, kidneys.- and increase of respiratory rate.