The net osmotic pressure is equal at both the arterial and the venous ends of the capillary. True or False

Answer: True

Explanation:

Let's start by explaining that cells that are part of a tissue are separated from each other by a space called cellular interstitium. These spaces are filled with a fluid called interstitial fluid (which is nothing more than blood plasma from the capillaries with a lower concentration of proteins than plasma).

However, due to its large molecular size, the proteins present in this interstitial fluid cannot pass through the walls of blood capillaries so easily, since the capillary wall is a semipermeable membrane (permeable to water but impervious to plasma proteins). It is there where the osmotic pressure appears, which allows water to enter the capillaries and does not let the proteins pass.

In this sense, the value of the net osmotic pressure is equal at both the arterial and the venous ends of the capillary.