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| Q. |
Which of the following instrument is used for recording the electrical activity of the muscles? |
| A. | ECG |
| B. | EMG |
| C. | PCG |
| D. | EEG |
| Answer» B. EMG | |
| Explanation: Electromyograph is an instrument used for recording the electrical activity of the muscles to determine whether the muscle is contracting or not; or for displaying on the CRO and loudspeaker the action potentials spontaneously present in a muscle or those induced by voluntary contractions as a means of detecting the nature and location of motor unit lesions; or for recording the electrical activity evoked in a muscle by the stimulation of its nerve. | |
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