Select the correct option.

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

2. 11\(^{th}\) and 12\(^{th}\) 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.

Doubtly Asked 30 Oct 2026 NEET UG 2019 Practice test neet Save WhatsApp Report

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Answer: 4. There are seven pairs of vertebrosternal, three pairs of vertebrochondral and two pairs of vertebral ribs.

Key idea: Humans have 12 pairs of ribs: 7 true, 3 false, 2 floating.

First seven pairs (vertebrosternal) join the sternum directly by hyaline cartilage.
8th, 9th, 10th pairs (vertebrochondral) join the 7th rib by cartilage, not the sternum directly.
11th and 12th pairs (vertebral or floating) have no ventral attachment.

Statement 4 matches this count. Options 1 and 2 misstate attachment, and option 3 is wrong because floating ribs are not connected to the sternum.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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