MEDICAL
THORACIC WALL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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5
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3
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2
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7
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Detailed explanation-1: -The 8th, 9th and 10th pairs are called as false ribs which do not join the sternum directly but are connected to the 7th rib by cartilage. The 11th and 12th pairs are called floating ribs. So, there are 3 pairs of false ribs present.
Detailed explanation-2: -False ribs are present in the eighth, ninth, and tenth pairs of rib bones. These are called vertebro-chondral ribs. False ribs are connected to the sternum through the seventh rib bones only.
Detailed explanation-3: -But the 8th, 9th and 10th pair are connected ventrally to the 7th rib by a cartilage and not to the sternum directly. Thus they are called false ribs.
Detailed explanation-4: -There are two pairs of floating ribs present in human body. There are usually 12 pairs of ribs. The 11th and 12th pairs of ribs are called floating ribs because these ribs do not attach to the sternums or to another rib.