Related Experiment Videos
The atrioventricular nodal artery in the human heart
1Department of Anatomy, Medical Academy, Lódź.
Folia Morphologica
|January 1, 1993
Insights
The atrioventricular node
Area of Science:
- Anatomy
- Cardiology
- Vascular Biology
Background:
- The atrioventricular node is critical for cardiac electrical conduction.
- Understanding its arterial supply is essential for diagnosing and treating cardiac arrhythmias.
Purpose of the Study:
- To investigate the origin of the arterial blood supply to the atrioventricular node in adult human hearts.
Main Methods:
- Utilized a corrosion cast technique on 120 adult cadaver hearts.
- Injected arteries with vinyl polichloride or Plastogen G via the aorta.
- Dissected and etched vessels using concentrated hydrochloric acid and soda lye.
Main Results:
- The right coronary artery supplied the atrioventricular node in 90% (108/120) of specimens.
- The left coronary artery supplied the atrioventricular node in 10% (12/120) of specimens.
Conclusions:
- The arterial supply of the atrioventricular node predominantly originates from the right coronary artery.
- This finding has implications for understanding cardiac electrophysiology and potential interventions.
Abstract:
Studies were performed on 120 hearts taken from adult cadavers of both sexes. In the study,. prepared and corrosion technique was used. Arteries were filled with vinyl polichloride or Plastogen G through the aorta. The examined vessels were dissected and either partly, or totally etched in the concentrated hydrochloric acid soda lye. The arterial blood supply of the atrioventricular node arose in 108 (90%) of the hearts from the right coronary artery and in 12 (10%) of the hearts from the left coronary artery.