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.
Table Saw. A table saw, unlike a circular saw, has a fixed circular blade that rises from a slot in a table. With this type of saw, the material to be cut is moved across a blade that remains in a fixed location. Smaller table saws that can be set on a workbench are referred to as workbench saws. Table saws set on steel legs are called contractor â s saws.