Question

_________ pairs of ribs are called false ribs.

• A. First 7 pairs of ribs
• B. 8th, 9th and 10th pair of ribs
• C. 11th and 12th pair of ribs
• D. None of the above

Answer 1

The correct option is B 8th, 9th and 10th pair of ribs

There are 12 pairs of ribs in the human body. The ribs which are dorsally connected to the thoracic vertebrae and ventrally connected to the sternum are called true ribs.
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.