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Simplify the Expression

question 71

Multiple Choice

Simplify the expression. Simplify the expression. A) B) C) D) E)

Definitions:

Electrical Impulses

Rapid, transient flows of electric charge that transmit information within the nervous system and across synapses, or power devices like pacemakers.

SA Node

The sinoatrial node, a group of cells in the right atrium of the heart that initiates the heart's electrical impulses, acting as a natural pacemaker.

AC Interference

Alternating Current interference; disturbances in electronic equipment caused by alternating current supply.

ECG Equipment

Instruments and devices used to record the electrical activity of the heart over a period of time.