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.
This test detects intrinsic factor antibody (IF antibody) circulating in blood. Intrinsic factor is a protein produced by a type of specialized cells that line the stomach wall known as parietal cells. During digestion, stomach acids release vitamin B12 from food and bind to intrinsic factor to form a complex.wo types of IF antibodies can be tested by the laboratory: 1  Intrinsic factor blocking antibody (type 1), which is more specific for pernicious anemia and is the one that is usually tested. 2  Intrinsic factor binding antibody (type 2), which interferes with the uptake of the vitamin B12-instrinsic factor complex.