False rib is:
10th rib do not aiculate with sternum anteriorly (false rib). The first seven 'true' ribs connect to the sternum by costal cailages, whilst the remaining lower five 'false' ribs either join the suprajacent (upper) costal cailage (8-10) or 'float' free at their anterior ends as relatively small and delicate structures tipped with cailage. Fig. : Rib cage
1st
2nd
7th
10th
Surfaces and Grooves