The costal cailages of these ribs do not reach the sternum
8,9,10 the ribs are joined to the next higher cailage B D CHOURASIAS HUMAN ANATOMY UPPER LIMB THORAX VOLUME, 1 SIXTH EDITION, Page no, 196
11th & 12th
1st & 2nd
6th & 7th
8th, 9th & 10th
Thorax