Last Updated: Mar 30, 2023
The ribs are the thoracic cavity's bony framework. The ribs are the primary structural component of the thoracic cage, protecting the thoracic organs; nevertheless, their primary purpose is to help respiration. There are a total of twelve pairs of ribs.The costovertebral joint connects each rib to two thoracic vertebrae posteriorly. They are known as costal cartilage, and they articulate with the vertebral column posteriorly before ending anteriorly as cartilage.Because they are part of the bony thorax, the ribs protect the interior thoracic organs. They also contribute to the movement of ventilation that occurs as the chest extends to allow for lung inflate.Ribs are classified into two types: Atypical and Typical.
While atypical ribs exhibit variations on this structure, normal ribs have a uniform structure. All 12 pairs of ribs connect to the vertebrae of the spine posteriorly. The first seven ribs connect to the sternum independently. The eighth, ninth, and tenth ribs are connected to the costal cartilages above them, however the eleventh and twelve ribs do not have an anterior link and end in the abdominal muscle.
They are called 'floating ribs' because of this. There are two joints in each rib: the Costotransverse joint, which connects the tubercle of one rib to the transverse costal facet of the corresponding vertebra, and the Costovertebral joint, which connects the head of the rib to the superior costal facet of the corresponding vertebra and the inferior costal facet of the vertebra above it.
The rib cage is an important part of the body's respiratory system. The lungs are shielded from harm since the thoracic cavity is completely covered. Aside from serving as a shield for the internal organs and tissues of the chest, it also aids in the processes involved in breathing and respiration. Supporting the upper limbs, they also offer a point of attachment for muscles and tendons.
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