Wave

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Wave (medicine)

Wave (pronounced: /weɪv/) in the context of medicine, often refers to a pattern or sequence of events that occur in a cyclical manner. This term is frequently used in electrocardiography to describe the graphical representation of the heart's electrical activity.

Etymology

The term 'wave' originates from the Old English 'wafian', which means 'to wave'. In the medical context, it was first used in the early 20th century with the advent of electrocardiography.

Related Terms

  • P Wave: The first short upward movement of the EKG tracing. It indicates that the atria are contracting, pumping blood into the ventricles.
  • Q Wave: The first downward deflection after the P wave. It represents the initial negative deflection due to ventricular depolarization.
  • R Wave: The first upward deflection after the Q wave. It represents the positive deflection due to ventricular depolarization.
  • S Wave: The first downward deflection after the R wave. It represents the final depolarization of the ventricles.
  • T Wave: A modest upright wave following the S wave. It represents ventricular repolarization.
  • U Wave: A wave sometimes following the T wave and thought to represent repolarization of the Purkinje fibers.

See Also

External links

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