Soft rib expansion helps you breathe. The spine of each rib coming out from the back becomes costal cartilage in front of the sternum, before the ribs, after and before, and the costal cartilage is connected with the upper rib on the 7th, 8th, 9th and 10. On the contrary, 1 1 and 12 ribs have no costal cartilage, are not attached to sternum or other ribs, and are free. The soft rib is the touchable part between the two sides, which is afraid of attack.
Extended data:
Because the width of ribs is limited, huge internal organs are protected by the combination of ribs. Basically, more than half of the ribs will participate in protecting the heart. In other parts, the protection of the liver also needs the protection of the right quarter rib.
The human body has 12 pairs of ribs, and 1-7 pairs (14) are directly connected with the sternum, which is called true ribs. 8- 12 pairs of ribs are not directly connected to the sternum, which are called false ribs, of which 8- 10 pairs are indirectly connected to the sternum through costal cartilage, and1and 12 pairs are not connected to the sternum, which is also called floating ribs. All 12 pairs of ribs can be photographed from the X-ray film.