Question

In regions of the cardiovascular system where there is steady laminar blood flow, the shear stress on cells lining the walls of the blood vessels is about 20 dyne/cm2. If the shear strain is about 0.008, estimate the shear modulus for the affected cells. Note 1 dyne = 1 g ⋅ cm / s 2 and 1 N = 10 5 dyne

Answer 1

`250` N/m2

Step-by-step explanation:

Shear stress on cells lining the walls of the blood vessels is equal to
`20`20 dyne/cm2

In terms of Newton/square meter, shear stress is equal to

`20*(dyne)/(cm^2)  ((10^(-5)N)/(1 dyne) )*((1 cm^2)/(10^(-4)*m^2) )\\= 2.0` N/m2

Shear modulus is equal to shear stress divided by shear strain

Thus, shear modulus is equal to

`= (2.0)/(0.008) \\= 250`N/m2