Structured Summary
Abstract
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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Classification
Broader headings
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MeSH Record
Synonyms
21 entry terms
- Sino-Atrial Node
- Sinu-Atrial Node
- Sinuatrial Node
- Sinus Node
- Node, Sino-Atrial
- Node, Sinoatrial
- Node, Sinu-Atrial
- Node, Sinuatrial
- Node, Sinus
- Nodes, Sino-Atrial
- Nodes, Sinoatrial
- Nodes, Sinu-Atrial
- Nodes, Sinuatrial
- Nodes, Sinus
- Sino Atrial Node
- Sino-Atrial Nodes
- Sinoatrial Nodes
- Sinu Atrial Node
- Sinu-Atrial Nodes
- Sinuatrial Nodes
- Sinus Nodes
MeSH Record
Aspects Covered
23 allowable subheadings
Indexed with the subheadings abnormalities, anatomy & histology, chemistry, cytology, diagnostic imaging, drug effects, embryology, enzymology, growth & development, immunology, injuries, innervation, metabolism, microbiology, parasitology, pathology, physiology, physiopathology, radiation effects, surgery, transplantation, ultrastructure, virology.
MeSH Record
History Note
78; was SINO-ATRIAL NODE 1964-77 (Prov 1964-69)
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AMA Style
References
- National Library of Medicine. Sinoatrial Node. Medical Subject Headings (MeSH). 2026. Unique ID D012849. http://id.nlm.nih.gov/mesh/2026/D012849
- Sinoatrial Node. In: Wikipedia. https://en.wikipedia.org/wiki/Sinoatrial_node
- Sinoatrial Node. In: Wikidata. https://www.wikidata.org/wiki/Q286020