Terminology Service for NFDI4Health
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atrioventricular node

Go to external page http://purl.obolibrary.org/obo/UBERON_0002352

An area of conducting tissue between the atria and the ventricles of the heart that conducts the normal electrical impulse from the atria to the ventricles. [ http://purl.obolibrary.org/obo/UBERON_cjm http://en.wikipedia.org/wiki/Atrioventricular_node ]

Term info

Label

atrioventricular node

Synonyms
  • AV nodal muscle tissue
  • AV node
  • Aschoff-Tawara node
  • atrioventricular nodal muscle tissue
  • node of Tawara
  • nodus atrioventricularis
database cross reference
Subsets

uberon_slim, efo_slim, pheno_slim, vertebrate_core, human_reference_atlas

RO 0002175

http://purl.obolibrary.org/obo/NCBITaxon_9606

depicted by

http://upload.wikimedia.org/wikipedia/commons/5/50/ConductionsystemoftheheartwithouttheHeart.png, http://upload.wikimedia.org/wikipedia/commons/9/92/Gray501.png

has related synonym

A-V node, atriovetricular node, nodus atrioventricularis, downstream pacemaker, atrio-ventricular node

homology notes

Three major adaptations, or 'novel cardiac components', that were not present in the ancestor chordate heart tube can be distinguished in the lower vertebrate heart: the atrium, ventricle, and possibly the muscular sinus venosus. Furthermore, within the ventricular component a compact outer myocardial component and an interiorly localized extensive trabecular component can be distinguished. The specific activation of the ventricle adds to its complexity as follows. The depolarizing impulse travels rapidly from the atrioventricular node toward the apex and then toward the conal region, achieving activation from apex to base.[uncertain][VHOG]

id

UBERON:0002352