The Correct Answer is 24.
Key Points
- Human ribs are flat bones that form part of the rib cage to help protect internal organs.
- Humans usually have 24 ribs, in 12 pairs.
- The first seven pairs are attached directly to the sternum by costal cartilages and are called true ribs.
- The 8th, 9th, and 10th pairs are called false ribs, they do not join the sternum directly but are connected to the 7th rib by cartilage.
Additional Information
- Human ribs are flat bones that form part of the rib cage to help protect internal organs.
- Humans usually have 24 ribs, in 12 pairs.
- Only 1 in 500 people have an extra rib known as a Cervical rib.
- At the front of the body, most of the ribs are joined by costal cartilage to the sternum.
- Ribs connect to vertebrae at the costovertebral joints.

