Answer to Question #184959 in Civil and Environmental Engineering for John Prats

Question

It has been estimated that a man's heart is about 33 cm below his brain. Considering the density of human blood to be 1.1x10³ kg/m³, what pressure must the heart produce to supply blood to the brain?

Answer 1

Pressure within the body is an enclosed system and can be calculated by the formula as follows,

Pressure= $h\rho g$

where h= height of fluid column to be pumped

$\rho =$ the density of fluid

$g=$ the gravitational acceleration assumed as 10 $m/s^2$ ($N/Kg$ )

Pressure = $0.33 \times 1.1 \times 10^3 \times 10$

P= 36330 $N/m^2$