what is left ventricle defibrillation?

Answer 1

the left ventricle is the part of the heart that pumps blood to the body
ventricular fibrillation is a disorder of its rhythmic contraction that causes it to shake in stead of the effective pumping - lethal condition if it persists
defibrillation is the act of returning it to normal rhythm, usually by electrical shock (defibrillator)

Answer 2

I'm not exatly sure what this question means, so I'm going to answer it by defining two terms, rather than just the one you asked for.
First off, let's talk about ventricular fibrillation. Your ventricles are the larger, more muscular chambers of the heart that are responsible for recieving blood from the atria (the other two chambers of the heart) and pumping it out to the lungs (for the right ventricle) and the rest of the body (the left ventricle).
Usually, the heart contracts in a coordinated manner designed to squeeze the maximum amount of blood out, but when you have ventricular fibrillation, the ventricle does not do this and instead quivers in an uncoordinated fashion and is not able to force blood out. As this results in there being no blood flow to the rest of the body, this is obviously rapidly fatal if not stopped, and that's where defibrillation comes in.
Defibrillation is what you see on TV sometimes in the medical dramas when they put those paddles on the chest of a patient (who usually has a flat line on his EKG, though actually defibrillation is NOT indicated for that) and yell "clear!", then shock him. What defibrillation does is run a relatively large electrical charge across the heart in an attempt to clear the fibrillation rhythm in the hope that the heart will be able to resume a perfusing rhythm (one that allows it to force blood out to the body) afterwards.
I hope that helps.

Answer 3

Texas Heart Institute: Anatomy of the Human Heart with Flash Illustration
http://texasheart.org/HIC/Anatomy/Anatomy.cfm

Answer 4

i think when all the blood supply of the heart goes only into one ventricle?