Synarthrosis

Synarthrosis: what it is and how it works

Synarthrosis is a fixed joint that is formed due to close fusion of bones through fibrous or cartilaginous tissue. Also known as a sutureless joint, synarthrosis joints provide maximum stability and protection for the bones being joined.

The term "synarthrosis" comes from the Greek words "syn-" (joint) and "arthrosis" (joint). This name reflects the essence of this type of joint: two bones are joined together so that they form one unit, despite the lack of movement between them.

There are several types of synarthrosis in the human body, which differ in the type of connecting tissue and location in the body. For example, the connection of cranial bones through sutures and the connection of teeth with the jaw bone are examples of synchondrosis - synarthrosis, which is formed due to cartilage tissue.

Another example is the connection of the vertebrae in the spine, which is formed by fibrous tissue and is called syndesmosis. This type of joint provides the rigidity and stability the spine needs to maintain an upright posture.

There is another type of synarthrosis called gomphosis. This type of joint is formed by the close fusion of conical or cylindrical bone surfaces, such as the joint between teeth and their alveolar openings in the jaws.

Although synarthroses do not allow movement between the connecting bones, they play an important role in maintaining skeletal stability and protecting internal organs. They can also serve as attachment points for muscles and ligaments, allowing for a degree of mobility in areas where it is needed.

In conclusion, synarthroses are important skeletal elements that provide stability and protection to the bones that connect despite the lack of movement between them. Different types of synarthrosis are formed due to different types of tissues and perform different functions in the body.