The Diagram Below Shows the Interface Between a Blood Vessel

Short Answer

The diagram below shows the interface between a blood vessel and several kidney cells.The arrows indicate the direction of flow of molecules from the blood into the kidneys to form urine.The extracellular matrix is shown lying between the kidney cells and the cells lining the blood vessel walls. This is an example of an extracellular matrix functioning in _______ of molecules, ensuring that proteins are retained in the blood while water, salts, and other small molecules pass into the urine.