1 = basal anterior; 2 = asal anteroseptal; 3 = basal inferoseptal; 4 = basal inferior; 5 = basal inferolateral; 6 = basal anterolateral; 7 = mid anterior; 8 = mid anteroseptal; 9 = mid inferoseptal; 10 = mid inferior; 11 = mid inferolateral; 12 = mid anterolateral; 13 = apical anterior; 14 = apical septal; 15 = apical inferior; 16 = apical lateral; 17 = apex.