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| Description: The micrograph above shows red blood cells as they squeeze through a capillary. At a capillary’s arteriole end, blood pressure forces plasma fluid out between cells of the capillary wall. Plasma proteins remain in the vessel, making plasma more concentrated. Plasma, with its dissolved proteins, has a greater solute concentration than the interstitial fluid. Thus, at the far end of the capillary, where blood pressure is lower, water moves into the vessel by osmosis. Picture Stats: Views: 125 Filesize: 112.71kB Height: 531 Width: 1500 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=47568 |