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.
(December 2014). A rivet gun, also known as a pneumatic hammer, is a type of tool used to drive rivets. The rivet gun is used on the manufactured head side of the rivet and a bucking bar is used on the buck-tail side of the rivet.The energy from the hammer in the rivet gun drives the work and the rivet against the inertia of the bucking bar.December 2014). A rivet gun, also known as a pneumatic hammer, is a type of tool used to drive rivets. The rivet gun is used on the manufactured head side of the rivet and a bucking bar is used on the buck-tail side of the rivet.