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Atrioventricular node (AV node)
1986 Consists of atrial muscle cells, stellate P cells, and transitional cells in a…
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Atrioventricular block
Prolongation of the electrocardiographic PR interval referred to a first-degree atrioventricular block. AV block…
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Atrial tachycardia
Refers to s supraventricular tachycardia (SVT) that does not require the AV junction, accessory…
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Atrial systole
Contraction of the atria propels some blood into the ventricles, but about 70% of…
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Atrial natriuretic peptide (ANP)
Polypeptide secreted by atrial cells when the atrium is distended. Secreted in response to…
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