Symptoms of brain tumours affecting the Frontal Lobe. The frontal lobes determine personality and contain the area called the motor cortex that controls movement of the muscles of the body (the motor cortex on the right half of the brain controls the left side of the body and vice versa).
Electrocardiogram Definition. A recording of the electrical activity of the heart. Abbreviated ECG and EKG. An ECG is a simple, noninvasive procedure. Electrodes are placed on the skin of the chest and connected in a specific order to a machine that, when turned on, measures electrical activity all over the heart.
An EKG is done to: 1  Check the heart's electrical activity. 2  Find the cause of unexplained chest pain or pressure. 3  This could be caused by a heart attack, inflammation of the sac surrounding the heart (pericarditis), or angina. 4  Find the cause of symptoms of heart disease. A stress EKG is a type of EKG done during exercise. 2  A resting EKG is always done before an exercise EKG test. 3  Results of the resting EKG are compared to the results of the exercise EKG. 4  A resting EKG may also show a heart problem that would make an exercise EKG unsafe.