Blood pressure in Argentinosaurus. (a) If this longnecked, gigantic sauropod had a head height of 21 m and a heart height of 9.0 m, what (hydrostatic) gauge pressure in its blood was required at the heart such that the blood pressure at the brain was 80 torr (just enough to perfuse the brain with blood)? Assume the blood had a density of 1.06 * 10^3 kg/m3. (b) What was the blood pressure (in torr or mm Hg) at the feet?
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.
Blood pressure in Argentinosaurus. (a) If this longnecked,
gigantic sauropod had a head height of 21 m and a heart
height of 9.0 m, what (hydrostatic) gauge pressure in its blood
was required at the heart such that the blood pressure at the
brain was 80 torr (just enough to perfuse the brain with blood)?
Assume the blood had a density of 1.06 * 10^3 kg/m3. (b) What
was the blood pressure (in torr or mm Hg) at the feet?
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