MIKEYs:  Public Access Defibrillators, also called Automatic External Defibrillators.  Defibrillator can hard to spell and even harder to say, so we call them MIKEYs. (see AED, PAD, Defibrillator)

Myocardial infarct:  Occurs when one or more regions of the heart muscle experiences a severe or prolonged decrease in oxygen supply caused by a blocked blood flow to the heart muscle, which causes the heart to stop. Also known as a heart attack.

Myocardial Ischemia:  An insufficient blood flow to part of the heart.

Myocardium:   The muscular layer of the heart.

Myocarditis: inflammation of the muscular walls of the heart