contestada

The electrocardiogram represents ________.
a. the electrical activity of all of the cardiac muscle
b. cells the electrical activity of only the pacemaker
c. cells the contractile activity of most of the myocardium
d. the electrical activity of the nerves that regulate the heart beat

Respuesta :

Answer:

The correct answer is A).

Explanation:

The electrocardiogram represents a study that records the electrical activity of the heart produced by each heartbeat as a function of time. It is done using an apparatus called an electrocardiograph. Electrodes are placed on the skin of the lying patient (in general there are 10).

 It was very useful for the detection of diseases such as myocardial infarction.

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