Now, what about our intrinsic pathway? So let's take a look at protein C. Protein C is a vitamin K dependent protease. And what that means is it depends on the presence of vitamin K to actually effective correctly, to actually function correctly and effectively. So if we don't have vitamin K, if we have a vitamin K deficiency in our body, that will basically mean that protein C cannot actually function properly. Now, protease basically means when it acts with its target molecule, it hydrolyzes, it breaks the peptide bonds at specific sites on the target molecule. So protein C is a protease, meaning it digests its target molecule.