Sagittal suture
Sagittal Suture
The Sagittal Suture (pronounced: /sædʒɪtəl ˈsuːtʃər/) is a fibrous joint that connects the two parietal bones of the skull.
Etymology
The term "sagittal" originates from the Latin word "sagitta", meaning "arrow". This is due to the suture's arrow-like appearance. The term "suture" comes from the Latin "sutura", meaning "seam".
Anatomy
The Sagittal Suture runs along the midline of the skull, from the frontal bone to the occipital bone, separating the left and right parietal bones. It is one of the major sutures of the skull, along with the coronal suture, lambdoid suture, and squamosal suture.
Clinical Significance
In infants, the sagittal suture allows for the rapid growth of the brain. However, premature closure of the sagittal suture, a condition known as scaphocephaly, can lead to a long, narrow head shape. This condition may require surgical intervention.
Related Terms
- Craniosynostosis: A condition in which one or more of the fibrous sutures in an infant's skull prematurely fuses.
- Fontanelle: Soft spots on a baby's head which, during birth, enable the bony plates of the skull to flex, allowing the child's head to pass through the birth canal.
- Scaphocephaly: A condition characterized by a long, narrow head shape due to premature closure of the sagittal suture.
External links
- Medical encyclopedia article on Sagittal suture
- Wikipedia's article - Sagittal suture
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