Examlex
If Mercury is 1.5*108 km from Earth and has a diameter of 2,400 km,what is its angular diameter as viewed from Earth?
QRS Segment
Part of an electrocardiogram (ECG) representing the depolarization of the heart's ventricles, which precedes the contraction of the ventricles.
ECG
An electrocardiogram, a test that measures the electrical activity of the heart to detect heart abnormalities.
Ventricule
A term often misspelled or used interchangeably with ventricle, which typically refers to one of the two lower chambers of the heart or a cavity in the brain that contains cerebrospinal fluid.
PR Interval
A measurement on an ECG that represents the time between the start of the atrial depolarization (P wave) and the start of the QRS complex, indicative of atrioventricular conduction.
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