A full-term fetus typically has a mass of 3.50 kg. (a) Whatpressure does the weight of such a fetus create if it rests onthe mother’s bladder, supported on an area of 90.0 cm2 ?(b) Convert this pressure to millimeters of mercury anddetermine if it alone is great enough to trigger the micturitionreflex (it will add to any pressure already existing in thebladder).
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.
A full-term fetus typically has a mass of 3.50 kg. (a) What
pressure does the weight of such a fetus create if it rests on
the mother’s bladder, supported on an area of 90.0 cm2 ?
(b) Convert this pressure to millimeters of mercury and
determine if it alone is great enough to trigger the micturition
reflex (it will add to any pressure already existing in the
bladder).
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