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.
gill arch. n. 1. One of several bony or cartilaginous arches located on either side of the pharynx and supporting the gills in fish and amphibians. 2. Embryology One of several corresponding arches in the embryo of a higher vertebrate that develop into structures of the ear and neck. In both senses also called branchial arch.