Question

4. Poiseuille's Law question Blood pressure does increase in direct proportion with the intensity of the exercise. Systolic blood pressure increases from 120 mmHg before exercise and exceed 200 mmHg during exercise and still be considered normal. Diastolic blood pressure changes little (assume stay at 80 mmHg). Equation hints: $\text{flow rate} = \frac{\Delta P \pi r^4}{8 \eta L} = \mathcal{F}$ Poiseuille's Law: For (a) F=Fo(?P / ?Po) F=Fo(r/ro)$^4$ F=Fo(?o/?) F=Fo(Lo/L) (a) What's the new pressure difference (?P), if normal is 120-80 mmHg? How many times is the new (?P) comparing with the normal ?P? How many times possible the blood flow rate can change based on the simplified equations below? (b) If artery cross-section area increases 10 % when exercise and assume no change of other factors? Using the simplified equation above, how many times possible increase in flow rate of blood?

          4. Poiseuille's Law question
Blood pressure does increase in direct proportion with the intensity of the
exercise. Systolic blood pressure increases from 120 mmHg before exercise and
exceed 200 mmHg during exercise and still be considered normal. Diastolic
blood pressure changes little (assume stay at 80 mmHg).
Equation hints:
$\text{flow rate} = \frac{\Delta P \pi r^4}{8 \eta L} = \mathcal{F}$
Poiseuille's Law:
For (a) F=Fo(?P / ?Po)
F=Fo(r/ro)$^4$
F=Fo(?o/?)
F=Fo(Lo/L)
(a) What's the new pressure difference (?P), if normal is 120-80 mmHg? How
many times is the new (?P) comparing with the normal ?P? How many times
possible the blood flow rate can change based on the simplified equations
below?
(b) If artery cross-section area increases 10 % when exercise and assume no
change of other factors? Using the simplified equation above, how many times
possible increase in flow rate of blood?

4. Poiseuille's Law question
Blood pressure does increase in direct proportion with the intensity of the
exercise. Systolic blood pressure increases from 120 mmHg before exercise and
exceed 200 mmHg during exercise and still be considered normal. Diastolic
blood pressure changes little (assume stay at 80 mmHg).
Equation hints:
flow rate = (Δ P π r^4)/(8 η L) = ℱ
Poiseuille's Law:
For (a) F=Fo(?P / ?Po)
F=Fo(r/ro)^4
F=Fo(?o/?)
F=Fo(Lo/L)
(a) What's the new pressure difference (?P), if normal is 120-80 mmHg? How
many times is the new (?P) comparing with the normal ?P? How many times
possible the blood flow rate can change based on the simplified equations
below?
(b) If artery cross-section area increases 10 % when exercise and assume no
change of other factors? Using the simplified equation above, how many times
possible increase in flow rate of blood?

Added by Ricardo G.

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