The flow rate of blood through a 2.00 x 10-6 m radius capillary is 3.80 x 10-9 cm3/s. (a) What is the blood velocity? (This small velocity allows time for diffusion of materials to and from the blood.) cm/s (b) Assuming all the blood in the body passes through capillaries, how many of them must there be to carry a total flow of 84.0 cm3/s? (The large number obtained is an overestimate, but it is still reasonable.) capillaries
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.
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