Q.

Among 12 pairs of ribs, 8, 9, 10 pairs are called false ribs. Why?

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a

They are not double headed.

b

They do not articulate directly with sternum.

c

They are not connected to the vertebral column.

d

They are shorter than the rest.

answer is D.

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Detailed Solution

8th, 9th and 10th pairs of ribs are vertebrochondral or false ribs as they articulate with the 7th rib by cartilage (and not with the sternum). They do not articulate directly with sternum and hence are called false ribs.

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