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单词 Sinoatrial block
释义

Sinoatrial block

英语百科

Sinoatrial block

The initial impulse in a heart is usually formed in the Sinoatrial (SA) node and carried through the atria, down the internodal atrial pathways, and to the Atrioventricular (AV) node. In normal conduction, the impulse would travel across the “bundle of His” (AV bundle), down the bundle branches, and into the Purkinje fibers. This would depolarize the ventricles and cause them to contract.

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更新时间:2025/6/20 11:05:18