What is a coronal stitch?
Coronal stitch is a joint that connects the two highest bones of the skull: front and parietal bones. It is created with the Department of two parietal bones, those on both sides of the skull, with the front bone located. Coronal stitch is a type of joint known as a fibrous joint that is held together by thick tissue of collagen. Although joints are often associated with movement, this type of joint allows little to no movement. Because the edges of these bones are irregular, they do not form a perfect line, yet these bones fit firmly like pieces of puzzles. This is because bones do not meet at birth. Among them is a slight gap that allows a small amount of movement when the child pushes the birth canal. As the skull grows and evolves, the bones gradually closed are almost fused.
As soon as this happens, the collagen fiber matrix known as Sharpey's fibers hold the bone firmly together to make almost noto move. The exception is what gives the skull the elasticity needed to endure the strength of expansion and contraction, as if there is a swelling around the brain. For this lack of movement, coronal stitch is also classified as a syntrous joint, unlike diartosis as the most movable joints of the body.
Another characteristic that separates the coronal stitch and other fibrous joints from penetration is the absence of synovial fluid. Diarthoses such as hips, shoulder and knee joints have a joint capsule between bones that contain synovial fluids. This fluid lubricates the joint and helps eliminate friction between neighboring bones as they move. Do not really move from the front and parietal kostis against each other and there are basically one bone, no synovial fluid contains in sewing between them.
Sometimes deformities are present between the cranial bones. This may happen when the skull bones are closed too quickly, resulting in too high and narrow skull, a condition known as oxycephalia or condition thatIt is asymmetrical, which is known as plagiocephalia. On the contrary, deformities known as fontanels can be seen when bones close too slowly or at all. In infants they are known as "soft spots" and usually disappear when the bones eventually combine. In rare cases, they are permanent, as with cleidocranial dystosis, congenital disorders.