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## Homework Statement

a person is 1.8 m tall, standing upright. His heart is 1.4m above his feet. He is doing a head stand. Calculate the hydrostatic blood pressure in (a) his feet and (b) his head.

## Homework Equations

P-Po= density x g x d

## The Attempt at a Solution

When standing upright:

Brain

Pheart-Pbraind=1059.5 x 9.81 x 0.4

13500-Gauge P in brain= 9.3 KPa

Feet

Pfeet-Pheart=1059.5 x 9.81 x 1.4

feet-13500=1059.5 x 9.81 x1.4

P feet= 28 KPa

How do I know what distance to use when he is upside down? You would think these numbers would just be opposite?