So, in the same exact way that objects always travel from a higher gravitational potential to a lower gravitational potential, water will always move from a higher osmotic potential in the tissue to a lower osmotic potential inside our blood vessel. And that's why water moves along this direction into our capillaries. So, due to the high level of proteins, ions and other solute molecules in the blood, the blood plasma has a greater solute concentration than the tissue of the membrane, and that means it has a lower osmotic potential. Therefore, water will move from the tissue and into the blood plasma from a high to a low osmotic potential, in the same way that objects move from a higher to a lower gravitational potential. Now, because inside the blood plasma, the relative concentration of these solute molecules remains the same, that means the zmodic pressure along the entire capillary will also remain the same. It will be equal to about 28 Mercury.