Love, adventure, and tragedy make a story exciting. The story of Venus and Adonis is one such tale. Here's how it goes: Venus, the goddess of love, fell for the handsome hunter Adonis. Adonis, who was a bit of a snob, believed he was the best hunter in the world and that nothing could ever happen to him.
Intrinsic factor. Intrinsic factor. a mucoprotein normally secreted by the epithelium of the stomach and that binds vitamin b12, the intrinsic factor/B12 complex is selectively absorbed by the distal ileum, though only the vitamin is taken into the cell.ntrinsic factor. Intrinsic factor. a mucoprotein normally secreted by the epithelium of the stomach and that binds vitamin b12, the intrinsic factor/B12 complex is selectively absorbed by the distal ileum, though only the vitamin is taken into the cell.
Together with factor VIIa, tissue factor forms the tissue factor or extrinsic pathway of coagulation. This is opposed to the intrinsic (amplification) pathway which involves both activated factor IX and factor VIII. Both pathways lead to the activation of factor X (the common pathway) which combines with activated factor V in the presence of calcium and phospholipid to produce thrombin (thromboplastin activity).