What is Rib cage?
[[File:Blue Whale skeleton CAS rib cage 3.JPG|thumb|Rib cage of a [[Blue Whale]]]] The '''ribcage''' is a part of the [[skeleton]] of [[human]]s and some [[animal]]s. It is made up of curved [[bone]]s called [[rib]]<nowiki/>s. The rib cage is found in the [[chest]] area. It protects a person's [[internal organ]]s from damage. Most humans have 12 [[pairs]] of rib bones with one from each pair on each side of the chest. Some people may have 11 or 13 pairs of rib bones. The bones are also filled with [[bone marrow]]. The bones that are connected to the sternum directly are called true ribs, and the bones that are connected to the sternum indirectly, through the seventh bone, are called false ribs (eighth, ninth, and tenth bones), and the bones which are not connected to the sternum, and is connected to the back bone, are called floating ribs. If these floating ribs were connected to the sternum, we could not breathe properly, as the chest needs space to expand and decrease. The rib cage is also called the thoracic cavity. [[Category:Bones]] {{biology-stub}}