The term “floating ribs” is used to describe the last two pairs of ribs in the human body. They are called floating ribs because they do not attach to the sternum or any other ribs in the front. Instead, they are only connected to the thoracic vertebrae in the back. This unique feature gives them the appearance of floating within the body.
The first ten pairs of ribs in the human body are known as true ribs because they attach directly to the sternum via cartilage. These ribs provide crucial support and protection to the organs within the thoracic cavity. The remaining two pairs, however, have a different structure and function.
The eleventh and twelfth pairs of ribs are called floating ribs because they lack the attachment to the sternum. Instead, they have a free, unattached end that floats in the posterior part of the body. This floating nature allows for increased flexibility and movement in the lower chest area.
While the floating ribs may not have a direct connection to the sternum, they still serve important functions in the body. They contribute to the overall stability and protection of the thoracic cavity. Additionally, they play a role in respiration by aiding in the expansion and contraction of the ribcage during breathing.
The floating ribs are relatively shorter and less curved compared to the true ribs. This anatomical difference allows them to provide less protection to the organs and are more susceptible to injury. However, their floating nature also grants them increased flexibility, which can be advantageous in certain activities such as deep breathing or bending sideways.
It is worth noting that the term “floating ribs” may vary slightly depending on the context. In some cases, it may refer specifically to the eleventh and twelfth ribs. However, in a broader sense, it can also include the tenth pair of ribs, which may have limited attachment to the sternum or no attachment at all.
The term “floating ribs” is given to the last two pairs of ribs in the human body due to their lack of attachment to the sternum. This unique anatomical characteristic allows for increased flexibility and movement in the lower chest area. While they may not provide as much protection as the true ribs, they still contribute to the overall stability and function of the thoracic cavity.