THE BLOOD SUPPLY OF THE LEFT BUNDLE BY THE FIRST SEPTAL ARTERY. AORTIC VALVE REPLACEMENT.
This is a heart with an aortic valve replacement and the entire heart conduction system and its blood supply was dissected.
The left anterior descending artery (lad) courses at the upper level of the photo.
The view is from the interventricular septum, of its left aspect.
The photo is so eloquent to any further decription.

Image #69