MEDICAL
THORACIC WALL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Costal Cartilage
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Vertebrosternal ("True") ribs
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Vertebrochondral ("False") Ribs
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Vertebral ("Floating") Ribs
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Detailed explanation-1: -Ribs 8–10 are attached indirectly to the sternum. For these ribs, the costal cartilage of each attaches to the cartilage of the next higher rib. The last false ribs (11–12) are also called floating (vertebral) ribs, because these ribs do not attach to the sternum at all.
Detailed explanation-2: -Ribs one to seven are considered true ribs and attach directly to the sternum via their own costal cartilage. Ribs eight to ten are the false ribs and are connected to the sternum indirectly via the cartilage of the rib above them.
Detailed explanation-3: -The 8th, 9th and 10th pairs of ribs are attached to the 7th pair of ribs with the help of hyaline cartilage. They do not directly articulate to the sternum and are therefore called false or vertebrochondral ribs.