A term means pertaining to the apex of heart?

Apical

The term "apical" means pertaining to the apex, which is the pointed end or tip of a structure. In the context of the heart, the apex refers to the lower, pointed end of the heart that is located on the left side of the chest. The apex is where the heart's left and right ventricles meet, and it is the point at which the heart's main pumping action takes place.