atrioventricular

American  

[ey-tree-oh-ven-trik-yuh-ler] / ˌeɪ tri oʊ vɛnˈtrɪk yə lər /

adjective

Anatomy.

1. of or relating to the atria and ventricles of the heart. AV, A-V

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atrioventricular British  

/ ˌeɪtrɪəʊvɛnˈtrɪkjʊlə /

adjective

1. of, relating to, or affecting both the atria and the ventricles of the heart

   atrioventricular disease

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Etymology

Origin of atrioventricular

1855–60; < New Latin atrio- (combining form of atrium heart chamber; atrium, -o- ) + ventricular

Example Sentences

The ventricles would contract, but the atria would not, because the atrioventricular node passes the signal to the Purkinje fibers, which allow the ventricles to contract.

From Textbooks • Jun. 9, 2022

Closing of the atrioventricular valves produces a monosyllabic “lup” sound.

From Textbooks • Jun. 9, 2022

Electrical charges pulse from the SA node causing the two atria to contract in unison; then the pulse reaches the atrioventricular node between the right atrium and right ventricle.

From Textbooks • Jun. 9, 2022

The coronary sinus is a large, thin-walled vein on the posterior surface of the heart lying within the atrioventricular sulcus and emptying directly into the right atrium.

From Textbooks • Jun. 19, 2013

Regardless of the pathway, as the impulse reaches the atrioventricular septum, the connective tissue of the cardiac skeleton prevents the impulse from spreading into the myocardial cells in the ventricles except at the atrioventricular node.

From Textbooks • Jun. 19, 2013