Heartbeat

Heartbeat

It is easy to demonstrate how the heart works.

02:05

Biology

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The cardiac muscle contracts and relaxes rhythmically., First, the atria fill with blood and contract, then the ventricles fill and contract., It is easy to demonstrate how the heart works., Right ventricle, Left ventricle, Right atrium, Left atrium, Normal resting heart rate, 60-80 beats per minute, Physical activity, overexertion and stress, among other things, can increase the number of contractions of the heart to up to 140 beats per minute., The heart rhythm can also be abnormal., Arrhythmia is a medical condition characterized by too fast, too slow or an irregular heart rate., Let’s see some examples., Atrial fibrillation, Ventricular tachycardia, Ventricular fibrillation, Ventricular fibrillation can lead to cardiac arrest., Severe arrhythmia can be treated with medication or by implanting a pacemaker in the patient’s body., In case of emergency, an automated external defibrillator can also be used.
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