The Inhibins A and B Blood Test helps determine the levels of inhibin A and inhibin B in blood. It helps in diagnosing abnormalities in pregnancy, including preeclampsia (which is a dangerously high blood pressure during pregnancy) Along with AFP and uE3, inhibin A and inhibin B levels are also measured as a second-trimester screen for Down syndrome
A gill (/É¡Éªl/) is a respiratory organ found in many aquatic organisms that extracts dissolved oxygen from water and excretes carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are kept moist.
Gills. The purpose of a fish's gills are to enable it to obtain oxygen from the water. A fish's gills contain special membranes that absorb oxygen and also release carbon dioxide. Basically a fish's gills has the same function as a person's lungs-the gills are where gas exchange occurs. Water has oxygen dissolved in it, which the fish needs to survive. The fish takes water in through its mouth and this water passes over the gills. The gills contain lots of blood vessels.