Cardiac rhythm
Cardiac Rhythm
Cardiac rhythm (pronounced: /ˈkɑːrdiæk ˈrɪðəm/) refers to the sequence of contractions of the heart that is regulated by the electrical conduction system of the heart.
Etymology
The term "cardiac" is derived from the Greek word "kardia," which means heart. "Rhythm" comes from the Greek word "rhythmos," meaning measured flow or movement.
Definition
Cardiac rhythm is the pattern of electrical impulses that control the heart's beating. This rhythm determines the rate and regularity of heartbeats. The normal cardiac rhythm, known as normal sinus rhythm, is established by the sinoatrial node, the heart's natural pacemaker.
Related Terms
- Arrhythmia: A condition in which the heart beats with an irregular or abnormal rhythm.
- Bradycardia: A slower-than-normal heart rate.
- Tachycardia: A faster-than-normal heart rate.
- Electrocardiogram: A test that measures the electrical activity of the heart.
- Pacemaker: A device that regulates the heart's rhythm.
See Also
External links
- Medical encyclopedia article on Cardiac rhythm
- Wikipedia's article - Cardiac rhythm
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