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Select the correct option.

(1) 8th, 9th and 10th pairs of ribs articulate directly with the sternum.

(2) 11th and 12th pairs of ribs are connected to the sternum with the help of hyaline cartilage.

(3) Each rib is a flat thin bone and all the ribs are connected dorsally to the thoracic vertebrae and ventrally to the sternum.

(4) There are seven pairs of vertebrosternal, three pairs of vertebrochondral and two pairs of vertebral ribs.
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Locomotion and movement

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Ans: (4) there are seven pair of vertebrosternal, three pairs of vertebrochondral and two pairs of vertebral ribs.

Explanation: vertebrosternal ribs are true ribs.

8th, 9th and 10th pair of ribs are vertebrochondral or false ribs.

11th and 12th pair of ribs are vertebral or floating ribs.

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