bn:00015950n
Noun Concept
Categories: Cardiac anatomy, Cardiac electrophysiology, All articles needing additional references, Articles with short description
EN
pacemaker  cardiac pacemaker  sinoatrial node  SA node  sinus node
EN
A specialized bit of heart tissue that controls the heartbeat WordNet 3.0
English:
SA
Definitions
Relations
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EN
A specialized bit of heart tissue that controls the heartbeat WordNet 3.0 & Open English WordNet
The sinoatrial 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. Wikipedia
The contraction of cardiac muscle in all animals is initiated by electrical impulses known as action potentials that in the heart are known as cardiac action potentials. Wikipedia
A structure in the superior part of the right atrium Wikipedia Disambiguation
Cells within the heart that initiate contractions and set the pace of beating Wikipedia Disambiguation
Network of cells that facilitate rhythmic heart contraction Wikidata
Group of cells located in the wall of the right atrium of the heart Wikidata
A group of cells located in the wall of the right atrium of the heart that originates the impulses stimulating the heartbeat. Wiktionary
A group of cells. Wiktionary (translation)
The sinoatrial node. Wiktionary