part of part of heart apex of heart http://upload.wikimedia.org/wikipedia/commons/4/46/Gray492.png SCTID:362009004 heart apex FMA also has terms for the apical zone cardiac apex The apex of the heart is the lowest superficial part of the heart. It is directed downward, forward, and to the left, and is overlapped by the left lung and pleura. [WP,unvetted]. FMA:7164 UMLS:C0225811 apex cordis MA:0000488 UBERON:0002098 NCIT:C32126 Wikipedia:Apex_of_the_heart anatomical point