It's performed to correct single ventricle birth defect. The normal heart has fours chamber - two upper atria and two lower ventricles. With single ventricle there is either a comlpete absence of a second ventricle or it is underdeveloped. Cauterization creates a second ventricle or enlarges a poorly developed one. Source(s): I'm a nurse.
Trivet definition, a small metal plate with short legs, especially one put under a hot platter or dish to protect a table. See more.
Correct use of cuvettes. A cuvette (from French cuvette = little vessel) is a small tube of circular or square cross section, sealed at one end, made of plastic, glass, or fused quartz (for UV light) and designed to hold samples for spectroscopic experiments.