Sinoatrial node - SAN stands for, Atrial systole - Contraction of the Atrium is called, Electrocardiogram - An ECG is , Diastole - The relaxation of the heart is called, PQRST - The trace of a heart beat is given these five letters, Myogenic - Cardiac muscle is described as being , Atrioventricular node - AVN stands for, Fibrillation - Inefficient pumping and unclear waves are called, Atrioventricular valves - Name the structures that prevent backflow into the atriums, Valves - What makes the noise of the heart beating,

Cardiac OCR Biology unit 1 Flip tiles2

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