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.
Uses of ECG / EKG. The electrocardiogram (ECG or EKG) is a noninvasive routine examination of the electrical activity of the heart that is used to reflect underlying heart conditions. Regular heart movements are controlled by a complex set of electrical impulses that direct the upper and lower heart chambers to contract and relax rhythmically.