Hello! There are 12 pairs of ribs. 1-7 ribs are connected to the sternum through costal cartilage, 8- 10 ribs are attached to the upper costal cartilage in turn, and the front ends of 1 1 and 12 ribs are free, which is called floating ribs. The main function of ribs is to support the chest and protect the internal organs. Removal of 12 floating tendons due to illness has little impact on health and will not affect pregnancy and delivery. Pay attention to avoid waist protection and collision in daily life.