Examlex
How have television advertisements and other forms of cultural media typically portrayed the elderly?
ECG
Electrocardiogram, a medical test that measures the electrical activity of the heart to detect and diagnose various heart conditions.
S-T Segment
A portion of the electrocardiogram (ECG) reading that represents the period between the ventricular depolarization and repolarization, significant in diagnosing myocardial damage.
T Wave
A component of the ECG that represents the repolarization, or recovery, of the ventricles during heartbeats.
Atrioventricular Valves
Valves located between the atria and ventricles of the heart that prevent the backflow of blood during contraction.
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