What is it: Not a fish to take lightly, Cobia will put up a fight with even the most seasoned anglers. As the Gulf Coastâs king of nicknamesâtheyâve been called âcabio,â âling,â âlemonfishâ and âcrabeaterââan average Cobia runs about 20-30 pounds, but theyâve been roped in at sizes of up to 100 pounds.
Thus, fluid generally moves out of the capillary and into the interstitial fluid. This process is called filtration. Osmotic Pressure. The net pressure that drives reabsorptionâthe movement of fluid from the interstitial fluid back into the capillariesâis called osmotic pressure (sometimes referred to as oncotic pressure).
The arterioles then divide further into capillaries. Capillaries are the smallest blood vessels and their walls are only one cell thick which allows diffusion between the blood and cells to occur. Nutrients and oxygen from the blood diffuses through the capillary walls into the tissues that need it. This is aided by the relatively high blood pressure that also squeezes the oxygen and nutrients through the capillary wall and into the cells of the tissue. At the same time carbon dioxide and other waste products re-enter the capillary in order to be processed and removed from the body.