How many pairs of ribs do humans typically have?

How many pairs of ribs do humans typically have?

• A. 10
• B. 12
• C. 14
• D. 16

Answer: (B)

Humans typically have 12 pairs of ribs, making a total of 24 individual ribs. These ribs are classified into three categories: true ribs, false ribs, and floating ribs. The first seven pairs are classified as true ribs, which attach directly to the sternum. The next three pairs are false ribs, which are connected to the sternum indirectly via cartilage. The last two pairs are called floating ribs, as they do not attach to the sternum at all. Understanding the structure and classification of ribs is essential in fields related to anatomy, kinesiology, and medicine, as they play vital roles in protecting vital organs, supporting the chest structure, and facilitating respiratory movements.

Humans typically have 12 pairs of ribs, making a total of 24 individual ribs. These ribs are classified into three categories: true ribs, false ribs, and floating ribs. The first seven pairs are classified as true ribs, which attach directly to the sternum. The next three pairs are false ribs, which are connected to the sternum indirectly via cartilage. The last two pairs are called floating ribs, as they do not attach to the sternum at all. Understanding the structure and classification of ribs is essential in fields related to anatomy, kinesiology, and medicine, as they play vital roles in protecting vital organs, supporting the chest structure, and facilitating respiratory movements.