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Is the capillary hydrostatic pressure always higher than the interstitial fluid hydrostatic pressure?
Wiki User
∙ 11y ago
no
Wiki User
∙ 11y ago
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What causes excess fluid in the interstitial compartment?
There is hydrostatic pressure within the capillary pushing the fluid out because fluid will always flow from high pressure to low pressure. At the same time there is something called blood colloid osmotic pressure which is the formed elements and larger plasma components such as proteins drawing fluid back into the capillary lumen by osmosis. The end result is that nearly just as much fluid that is filtered out at one end is reabsorbed by the time it reaches the other end. This is known as Starlings Law of the capillaries.What little excess isn't reabsorbed by the capillary will be picked up and returned to the cardiovascular system through the lymphatic system.
What always occurs down a hydrostatic pressure gradient?
Filtration
Why hydrostatic pressure is a scalar quantity even through pressure is force divided by area?
I'm guessing that your issue is that force is a vector quantity? It turns out that hydrostatic force is always normal to the surface, so it can be treated as a scalar; only the magnitude is important.
What pressure will a scuba cylinder with a rated working pressure of 3000 psig be exposed to during a hydrostatic test?
The test pressure is always stamped on the cylinder along with the working pressure, physical volume, manufacture date etc. It is generally about twice the working pressure of the cylinder.
What is hydro-static pressure?
Hydrostatic pressure is the pressure which is exerted on a portion of a column of water as a result of the weight of the fluid above it.Hydrostatic pressure is what is exerted by a liquid when it is at rest. The height of a liquid column of uniform density is directly proportional to the hydrostatic pressure.The hydrostatic properties of a liquid are not constant and the main factors influencing it are the density of the liquid and the local gravity. Both of these quantities need to be known in order to determine the hydrostatic pressure of a particular liquid.The formula for calculating the hydrostatic pressure of a column of liquid in SI units is:Hydrostatic Pressure (Pa, N/m2) = Height (m) x Density(kg/m3) x Gravity(m/s2)The density of a liquid will vary with changes in temperature so this is often quoted alongside hydrostatic pressure units e.g. inH2O @ 4 deg C.The local gravity depends on latitudinal position and height above sea level.For convenience the most common standard for hydrostatic pressure is metres or inches of water at 4 deg C (39.2 degF) with a standard gravity of 9.80665 m/s2. The density of pure water at 4 deg C is very close to 1000 kg/m3 and therefore this has been adopted as the standard density of water. Another reason for the significance of choosing 4 deg C is that it is very close to the temperature that water reaches its maximum density.In practical terms hydrostatic pressure units are rarely absolutely precise because the temperature of any liquid is not always going to be 4 deg C. You will also come across another temperature standard of 60 deg F (15.56 deg C). This can lead to confusion and inaccuracies when the temperature is not labelled alongside the hydrostatic pressure unit. For most applications these differences are not significant enough to influence the results since the reading accuracy is often much wider than the difference in the pressure unit conversion factor at these 2 temperatures.In summary hydrostatic pressure units are a very convenient method for relating pressure to a height of fluid but they are not absolute pressure units and it is not always clear what density/temperature has been assumed in their derivation, so be very cautious when using them for high precision level measurements. In fact some institutions are discouraging their use because of the very reasons mentioned above.
Is blood pressure highest in the aorta pulmonary artery capillary bed or subclavian vein?
The order, from most to least pressure: * Aorta * pulmonary artery * capillary bed * subclavian vein This is because the aorta takes blood the farthest distance, from the heart to the rest of our body organs, so it requires a greater push from the heart. Pressure in the veins is always lower, due to the fact the blood flowing through them has travelled further. The pulmonary artery doesn't take blood as far as the aorta, so it therefore does not need as high a pressure.
Is mercury in any devices always in a capillary tube?
A thermometer has a capillary tube but a mercury switch in a heater thermostat has mercury that just rolls back and forth.
What is a rock always?
A rock is always formed by heat and pressure it always starts out with heat and pressure......
Does wind always blow from high pressure to low pressure?
Yes, winds always blow from areas of high pressure to areas of low pressure.
Tiny blood vessels joining artery with vein?
the smallest blood vessel is the capillary, then the vein, and the artery. (vein and artery depends though because when they diffuse they get smaller and close to the same size) but the smallest will always be the capillary.
Does low suction pressure always indicate a leak?
No not always.
Local winds always blow from?
higher pressure to lower pressure
