MEDICAL
THORACIC WALL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which is true about the floating ribs?
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Each articulates with the thoracic vertebrae and directly to sternum with their own costal cartilage
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Each articulates with the thoracic vertebrae and binds indirectly to sternum by sharing costal cartilage
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Each articulates with the thoracic vertebrae, but do not connect to the sternum
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They do not connect to the sternum or the vertebrae
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Explanation:
Detailed explanation-1: -However, the floating ribs are the ribs that do not articulate with the sternum at all; they are the distal two ribs. The true ribs articulate with the sternum by the sternocostal joints. The first rib is an exception to that rule; it is a synarthrosis.
Detailed explanation-2: -3. There are two pairs of floating ribs and they are the most inferior of the ribs. They are different from the other ribs of the thoracic region because they do not articulate anteriorly with the sternum or the costal cartilage of other ribs. They do articulate with the thoracic vertebrae 11 and 12 posteriorly.
Detailed explanation-3: -The floating ribs (11, 12) do not articulate with the sternum at all (distal two ribs).
There is 1 question to complete.