Definition

Noun: * The sagittal suture: A dense, fibrous joint (suture) in the human skull that runs along the midline of the cranial vault, connecting the left and right parietal bones.

Usage

• The interparietal suture is a major anatomical landmark on the top of the skull.
• In forensic anthropology, the degree of fusion of the interparietal suture can help estimate an individual's age at death.
• The interparietal suture is typically fully fused in adulthood.

Advanced Usage

• Metopic suture vs. interparietal suture: The metopic suture is found between the frontal bones, while the interparietal suture is between the parietal bones.
• Craniosynostosis: A condition where one or more cranial sutures, such as the interparietal suture, fuse prematurely in an infant, potentially affecting skull shape and brain development.

Variants and Related Words

• Sagittal suture: This is the most common and precise synonym for the interparietal suture.
• Parietal bone (n): Either of the two large, curved bones that form the sides and roof of the cranium, united by the interparietal suture.
• Suture (n): In anatomy, a type of immovable joint found only between skull bones.

Synonyms

• Sagittal suture

Related Terms

• Coronal suture: The suture where the parietal bones meet the frontal bone.
• Lambdoid suture: The suture where the parietal bones meet the occipital bone.
• Bregma: The anatomical point where the coronal and sagittal (interparietal) sutures intersect.
• Lambda: The anatomical point where the sagittal (interparietal) and lambdoid sutures intersect.

Noun

1. the suture uniting the two parietal bones