Important Formulas

Question 1

Poiseuille Formula:

Answer 1

Flow= Δpπr4/8ln; F= flow, P= pressure, r= vessel radius, L= tube length, N= viscosity (Radius is most important contributor to flow)

Question 2

Fick Equation:

Answer 2

VO2 = Q x a-vO2 difference

The relationship between Cardiac Output (Q), a-vO2 difference and VO2

Question 3

A-vO2 difference (Fick Equation)

Answer 3

Amount of O2 that is taken up from 100 ml blood; Increase with exercise, Due to higher amount of O2 taken up (Used for oxidative ATP production)