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Sinoatrial node

The sinoatrial node (also known as the sinuatrial node, SA node, sinus node or Keith–Flack node) is an oval shaped region of special cardiac muscle in the upper back wall of the right atrium made up of cells known as pacemaker cells. The sinus node is approximately 15 mm long, 3 mm wide, and 1 mm thick, located directly below and to the side of the…

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Acronym
SA node
Artery
Sinoatrial nodal artery
FMA
9477
Latin
nodus sinuatrialis
MeSH
D012849
System
Electrical conduction system of the heart

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Overview

Structure

Function

Nerve supply

Clinical significance

History

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Map overview Semantic statistics

Sinoatrial node

Nodes102
Edges101
Triples68
Avg. degree1.98
Density0.019608
Components1

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Sinoatrial node

Top relations

related to Microanatomy · 17
Sinoatrial node → Atrial, Atrioventricular, AVN, Elongated, Immediately, In, On, Purkinje, SA, Spider, Spindle, The, The SA, These, This, Unlike, Within
related to Pacemaking · 11
Sinoatrial node → An, In, Instead, Once, Other, Outlined, Pacemaker, Purkinje, SA, The, This
related to history · 8
Sinoatrial node → England, Kent, Mann's Place, Martin Flack, Sir Arthur Keith, The, Their, They
related to Nerve supply · 8
Sinoatrial node → ANS, At, CNG, HCN, Heart, Kir, Modulation, This
related to Blood supply · 7
Sinoatrial node → Also, Despite, Finally, For, SA, The, This
related to Clinical significance · 5
Sinoatrial node → Blockage, SA, Sinus, This, When
related to Structure · 3
Sinoatrial node → SA, Structurally, The
Acronym · 1
Sinoatrial node → SA node
Artery · 1
Sinoatrial node → Sinoatrial nodal artery
FMA · 1
Sinoatrial node → 9477

Important terminology Word statistics

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Important terminology

node sa heart potential cells cell action pacemaker membrane known sinoatrial rate atrial channels potentials also calcium nerves called cardiac

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Sinoatrial nodeAcronymSA node1.00infobox
Sinoatrial nodeArterySinoatrial nodal artery1.00infobox
Sinoatrial nodeFMA94771.00infobox
Sinoatrial nodeLatinnodus sinuatrialis1.00infobox
Sinoatrial nodeMeSHD0128491.00infobox
Sinoatrial nodeSystemElectrical conduction system of the heart1.00infobox
Sinoatrial nodeTA239531.00infobox
Sinoatrial nodeTA98A12.1.06.0031.00infobox
Sinoatrial nodeis acrescent-shaped structure located in the subepicardial layer of the right atrium0.90text
Sinoatrial noderelated to Blood supplyThe0.60section
Sinoatrial noderelated to Blood supplyThis0.60section
Sinoatrial noderelated to Blood supplyFor0.60section

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