Sinuatrial Nodes
《英文msh詞典》Sinuatrial Nodes
[入口詞] Sinuatrial Nodes
[主題詞] Sinoatrial Node
[英文釋義] The small mass of modified cardiac muscle fibers located at the junction of the superior vena cava (VENA CAVA,SUPERIOR) and right atrium. Contraction impulses probably start in this node,spread over the atrium (HEART ATRIUM) and are then transmitted by the atrioventricular bundle (BUNDLE OF HIS) to the ventricle (HEART VENTRICLE).
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考試詞匯表
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