What term is used for the last two pairs of ribs that have no anterior attachment?

What term is used for the last two pairs of ribs that have no anterior attachment?

• A. Transitional ribs
• B. Vertebral ribs
• C. Floating ribs
• D. False ribs

Answer: (C)

The term for the last two pairs of ribs that have no anterior attachment is commonly referred to as floating ribs. These ribs, which are the eleventh and twelfth pairs, do not connect to the sternum or other ribs in the front. Instead, they are only attached to the vertebrae at the back. This anatomical feature allows for increased flexibility and movement of the rib cage during respiration and other activities, while also providing some protection for the organs in the lower back. The other terms are used to describe different categories of ribs. Transitional ribs refer to variations in rib structure that can occur, but they are not specifically describing ribs without anterior attachments. Vertebral ribs usually denote a similar concept but specifically refer to those ribs that articulate solely with the vertebrae and do not have any anterior attachments. False ribs is a wider term that includes ribs that do connect indirectly to the sternum through the cartilage of the rib above, thus they are not a precise term for the last two pairs. Floating ribs are the specific classification for the ribs in question due to their unique lack of front attachment.

The term for the last two pairs of ribs that have no anterior attachment is commonly referred to as floating ribs. These ribs, which are the eleventh and twelfth pairs, do not connect to the sternum or other ribs in the front. Instead, they are only attached to the vertebrae at the back. This anatomical feature allows for increased flexibility and movement of the rib cage during respiration and other activities, while also providing some protection for the organs in the lower back.

The other terms are used to describe different categories of ribs. Transitional ribs refer to variations in rib structure that can occur, but they are not specifically describing ribs without anterior attachments. Vertebral ribs usually denote a similar concept but specifically refer to those ribs that articulate solely with the vertebrae and do not have any anterior attachments. False ribs is a wider term that includes ribs that do connect indirectly to the sternum through the cartilage of the rib above, thus they are not a precise term for the last two pairs. Floating ribs are the specific classification for the ribs in question due to their unique lack of front attachment.