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.
A 12-lead ECG detects and amplifies these voltage changes between two electrodes as wavy lines on paper or a monitor screen. Electrodes are commonly placed in pairs, such as on the right leg and left leg. Each pairâs output is called the lead, and it captures heart information from different angles. Unlike 12-lead ECGs, the information recorded by 3- and 5-lead ECGs is rarely printed out and generally is used as a form of continuous monitoring via a screen during ambulance transport or hospitalization.