Question

The $8^{th}$ and $9^{th}$ ribs are known as false ribs because their external portions are attached to

• A. Xiphisternum
• B. Costa of $7^{th}$ rib
• C. They have no Costa
• D. They are not true ribs

Answer 1

The correct option is B Costa of $7^{th}$ rib

The eighth, ninth and tenth pairs of ribs are called false ribs. They articulate by cartilage with costal cartilage of the seventh rib.