In this view, we observe the heart, coronary arteries and great vessels. This drawing, as all the other blackboard sketches shown, are drawn in front of the students, with their active participation, thus enhancing their learning experience.

The branches of the coronaries are clearly depicted. Arising from the right coronary artery we observe from proximal to distal the artery to the conus arteriosus, the right ventricular arteries, and the long acute marginal artery.  The right coronary artery can be seen passing posteroinferiorly to become the posterior descending (posterior interventricular) artery.  The branches of the left coronary are the circumflex (CFX) artery and the anterior interventricular artery, also known as the left anterior descending (LAD) artery.  Two large diagonal branches are seen arising from the LAD. A obtuse marginal artery is originating from the CFX.

Why is the anteroinferior border of the heart known as the margo acutus?

Posterior abdominal wall
Hepatobiliary tree
Stomach