electro-, electr-, electri-
(Greek > Latin: electric, electricity; from amber, resembling amber, generated from amber which when rubbed vigorously [as by friction], produced the effect of static electricity)
Electronics in our lives consists of numerous tools
Equipment which we use everyday relies on electronics to function including calculators, car controls, cameras, washing machines, medical scanners, mobile telephones, radar systems, computers; as well as many other applications or devices which are listed in this unit.
2. The scientific study of electric phenomena present in the living body and in other organisms; either those produced by the organism itself or by outside sources.
2. The use of a galvanic current to determine whether a tissue is living by recording of electrical activity in a bodily tissue or organism.
3. The examination of a body by means of an electric current, to discover muscular contractions as evidence of life.
2. A record of the electric currents produced in the body by the heart-beats of a patient. The electrocardiogram gives important information concerning the spread of excitation to the different parts of the heart, and is of value in diagnosing cases of abnormal cardiac rhythm and myocardial damage which refers to the muscular tissue of the heart.
2. A device used for recording the electrical activity of the myocardium (heart muscle) to detect transmissions of the cardiac impulses through the conductive tissues of the muscle.
Electrocardiography allows for the diagnosis of specific cardiac abnormalities.3. An instrument for recording the waveforms of voltages developed in the chest and lower parts of the human body in synchronism with the action of the heart.
4. An instrument used for making electrocardiograms.
I contains a lead-switching network, a differential amplifier, and a strip-chart recorder to trace the electrocardiogram on paper output.
2. A record, made by the electrocardiograph, which varies with the site of the electrode.
These plates are attached to a recording instrument, and they pick up the electrical impulses of the heart during which small changes occur as the heart beats. The normal form of these beats is altered by heart disease.2. The creation and study of graphic records produced by electric currents originating in the heart and the interpretation of electrocardiograms: Electrodes connected to a recording machine are applied to the chest, wrists, and ankles. 3. The specialty or science of recording and interpreting the electrical activity of the heart: An ECG, or EKG, can be taken at home, in the physician's office, or in the hospital where a 24-hour record can be obtained from a tape recorder worn by the patient.
This record provides information about the part of the heart that triggers each heartbeat (the pacemaker), the nerve conduction pathways of the heart, and the rate and rhythm of the heart.