The right ventricle
The heart has three surfaces: anterior, inferior and posterior. The anterior, sternocostal surface, the inferior or diaphragmatic surface and the base of the heart, the posterior surface.
On the anterior side.
Posterosuperior surface of the Heart. it is formed primarily by left atrium
the base of the heart is its posterospuerior surface. it is formed primarily by left atrium.
anterior interventricular sulcus
The upper most anterior / inferior connecting part of the Heart to the Arteries.
The sternum is anterior to the heart.
An elongate midline mark on the anterior, dorsal surface of the abdomen which overlies the heart
Interventricular groove or Sulcus
Distal and anterior are adjectives that anatomists use to describe locations of various organs and tissues. Distal - meaning "far from" Anterior - meaning "in front" Thus, if we were using the top of the heart as a reference point, the distal anterior wall in the heart would be the part of the heart wall that is distal (since we said the top of the heart was our reference, it would have to be at the bottom of the heart) and anterior (which would be the front of the heart).
There is a diagonal artery that is a branch of the left coronary artery on the surface of the heart. It is a diagonal artery simply because it runs diagonally across the anterior (front) of the heart.
the interventricular septum, it separates the two ventricles