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DeCS
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Descriptor English:
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Sinoatrial Node
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Descriptor Spanish:
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Nodo Sinoatrial
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Descriptor Portuguese:
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Nó Sinoatrial
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Synonyms English:
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Sinus Node
Sinuatrial Node
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Tree Number:
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A07.541.409.819
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Definition English:
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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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History Note English:
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78; was SINO-ATRIAL NODE 1964-77 (Prov 1964-69)
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Allowable Qualifiers English:
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Record Number:
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13230
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Unique Identifier:
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D012849
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Occurrence in VHL:
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Similar:
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DeCS CID-10 SciELO LILACS LIS
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