Atrioventricular definitions
| Word backwards | ralucirtnevoirta |
|---|---|
| Part of speech | adjective |
| Syllabic division | a-tri-o-ven-tri-cu-lar |
| Plural | The plural of atrioventricular is atrioventriculars. |
| Total letters | 16 |
| Vogais (5) | a,i,o,e,u |
| Consonants (6) | t,r,v,n,c,l |
Within the human heart, the atrioventricular (AV) node plays a crucial role in regulating the electrical signals that coordinate the heart's rhythm and pumping action.
Function of the AV Node
The AV node acts as a bridge between the atria and the ventricles, allowing electrical impulses generated by the sinoatrial (SA) node to travel from the upper chambers (atria) to the lower chambers (ventricles) of the heart.
Electrical Conduction
When the electrical signal reaches the AV node, it briefly delays the impulse before transmitting it further down the conduction pathway. This delay ensures that the atria have enough time to contract and fill the ventricles with blood before they pump it out to the body.
Regulation of Heart Rate
The AV node also helps regulate the heart rate by adjusting the speed at which electrical signals pass through it. This control contributes to the coordination of heartbeats and the overall efficiency of the heart's pumping function.
Significance in Cardiac Function
Any abnormalities or disruptions in the AV node's function can lead to heart rhythm disorders, such as atrioventricular block or atrial fibrillation. These conditions can affect the heart's ability to pump blood effectively and may require medical intervention to manage.
Overall, the atrioventricular node plays a vital role in ensuring the proper functioning of the heart's electrical system, coordinating the rhythmic contractions that allow the heart to pump blood efficiently throughout the body.
Atrioventricular Examples
- The atrioventricular node is an essential part of the heart's electrical conduction system.
- Atrioventricular block can cause symptoms such as dizziness and fatigue.
- Doctors may use an atrioventricular valve repair to treat certain heart conditions.
- The atrioventricular junction is the area where the atria and ventricles meet.
- Atrioventricular reentrant tachycardia is a type of abnormal heart rhythm.
- The atrioventricular septum separates the left and right sides of the heart.
- Atrioventricular regurgitation occurs when blood flows back into the atria from the ventricles.
- An atrioventricular shunt is a surgical procedure used to treat certain heart defects.
- Atrioventricular dissociation is a condition where the atria and ventricles beat independently.
- The atrioventricular canal defect is a congenital heart abnormality present at birth.