The Fascinating Human Ribs – FAQs: How Many Ribs Does a Person Have and Why?
Did you know that human beings have twelve pairs of ribs, making a total of twenty-four ribs in their bodies? It is a fascinating fact, and there are several reasons as to why we have this many ribs. In this article, we will delve deeper into the world of human anatomy and answer the most commonly asked questions regarding our ribs.
Why Do We Have Twelve Pairs of Ribs?
As we mentioned earlier, humans have twelve pairs of ribs. The first seven ribs are called “true ribs.” These are directly attached to the sternum via cartilage. The next three ribs are known as “false ribs.” These ribs are indirectly connected to the sternum via the cartilage of the seventh rib. Finally, the last two pairs of ribs are called “floating ribs” as they do not attach to the sternum or any other bone, making them susceptible to injuries.
But why do we have twelve and not eleven or thirteen pairs of ribs? The reason lies in the evolution of our breathing mechanism. Our ribs are there to protect our lungs, which help us breathe. The lungs need ample space to expand and contract, and having twelve pairs of ribs creates enough room for them to do so. Additionally, having more than twelve pairs of ribs would hinder our flexibility and range of motion.
What Other Functions Do Our Ribs Serve?
Apart from protecting our lungs, our ribs provide attachment points for many important muscles in our bodies. These muscles are crucial in allowing us to move, breathe, and maintain our posture. Moreover, our ribs work with our sternum, spine, and other bones to form a strong and protective rib cage.
Can a Person be Born Without Ribs?
It is rare, but it is possible for a person to be born without ribs. This condition is called “congenital absence of ribs” or “rib agenesis.” It is a genetic disorder that affects the growth and development of the ribs in the fetus. However, individuals born without ribs can lead relatively normal lives, as their lungs are still protected by other bones and muscles in their bodies.
Conclusion
Our ribs may seem like simple bones, but they play a crucial role in our overall health and well-being. From protecting our lungs to providing attachment points for important muscles, our ribs are an essential part of our body. Understanding the significance of our ribs can help us appreciate our body’s intricate workings even more.
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