For Most of Human History It Was Believed That the Earth

question 14

Multiple Choice

For most of human history it was believed that the Earth was at the center of the universe. This idea is referred to as

• A) heliocentric
• B) egocentric
• C) geocentric
• D) stellocentric

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Definitions:

Isoelectric Line

In electrocardiography, the baseline level of the chart when no electrical activity is detected in the heart.

ECG

Electrocardiogram, a test that records the electrical activity of the heart over a period of time, used to detect heart abnormalities.

S-T Segment

A section of the electrocardiogram (ECG) tracing between the S wave and the start of the T wave, representing the interval between ventricular depolarization and repolarization.

T Wave

A component of the ECG that represents the repolarization of the ventricles in the heart cycle.