Examlex
Which of the following is true?
ECG
Electrocardiogram, a test that measures the electrical activity of the heart to identify various heart conditions.
Electrical Activity
The movement of electrically charged particles, such as ions, which is fundamental to many biological processes, including nerve conduction and muscle contraction.
Heart
A muscular organ responsible for pumping blood through the circulatory system.
Mitral Valve
A valve in the heart that allows blood to flow from the left atrium into the left ventricle but prevents it from flowing back into the atrium.
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