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 ]

Synonyms: atrioventricular nodal muscle tissue AV node Aschoff-Tawara node nodus atrioventricularis node of Tawara AV nodal muscle tissue

This is just here as a test because I lose it

Term information

database cross reference
Subsets

uberon_slim, efo_slim, pheno_slim, vertebrate_core

latin term
nodus atrioventricularis [ FMA:TA ]

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