Certainly it's truly an extraordinary lecture! I had a lot of confusion between these two pressures. I am very grateful!! I am studying pleural effusion and this made me understand a lot better the pathophysiology of that disease. Greetings from Guayaquil, Ecuador
Thanks! Was struggling to grasp the concept of why fluid was accumulating in this interstitial space due low oncotic pressure. I understand now. I guess this means that increased hydrostatic pressure will also cause this fluid accumulation?
This may be a stupid question, but here goes. When a napkin is placed in a glass of liquid (water) osmosis or oncotic pressure is caused, beginning a continuous pressure. When the liquid gets to the ends of the napkin, does gradient pressure cause the liquid to leave the napkin? And, in this case, does the height of the end of the napkin in the glass opposed to the end of the napkin on the exterior have a syphon effect, which would be the differential of the force gravitational attraction (negative pressure)? Like I said, this being basic physics have anything to do with either or both types of pressure.? tia
but how is hydrostatic pressure caused by gravity? I get the lateral pressure against the walls from fluid flow, but why do explanations credit this pressure with being related to gravity?
Indeed. While pressure does not act in any preferential direction, a pressure gradient does have a direction. Hopefully that clarified things a bit better. Thanks!