the second pair of ribs
Second
The true ribs (pair 1-7) are connected to the sternum by way of the costal cartilages, a type called hyaline. Pair 8-10 are called floating ribs and they also attach to the sternum but use the same cartilage as 7.
The second pair of ribs or the True ribs
There are twelve pair of ribs. The first seven ribs are true ribs because they have direct attachment to the sternum. An additional three pair of ribs have indirect attachment to the sternum meaning that they attach to other structures that attach to the sternum. The last two ribs are called floating ribs because they do not attach to the sternum at all. Because the floating ribs do not attach to the sternum they are prone to injury.
The ribs and sternum are best classified as the rib cage. Most of the ribs and sternum consist of bone.
4 ribs is connected to the sternum
The costal angle is the angle beneath the the sternum. It is created by the costal cartilage that joins what are called the false ribs, the ones tha6t do not directly attach to the sternum via their own cartilage, but attach directly and indirectly to the cartilage of the 7th rib. This angle is created because these false ribs get shorter as they go down. Since they are connected by the descending costal cartilage which travels laterally and inferiorly from the sternum, it creates the angle known as the costal angle.
Cartilage is the structure that attaches the ribs to the sternum. Together with the ribs, the sternum protects major organs like the heart.
well girls do have a floating rib its just that boys don't think that we have a floating rib
No, they do not. The floating ribs do not connect to the sternum.
Only the true ribs are attached to the sternum the false ribs (3) and the floating ribs (2) are not directly attached. The flalse ribs are attached indirectly via cartillage and the floating ribs are not attached at all.
false ribs
No. They are connected in the frontal plane by the rectus abdominis. This muscle originates at the pubic symphysis (aka "pubic bone") and inserts on the cartilage of the 5th, 6th, and 7the ribs.