Bregma
Bregma
Bregma (/ˈbrɛɡmə/; from the Ancient Greek βρέγμα, meaning 'front') is an anatomical term that refers to the point on the skull where the coronal suture and the sagittal suture intersect. It is a significant landmark in neuroanatomy and cranial anatomy.
Etymology
The term 'Bregma' is derived from the Ancient Greek word βρέγμα, which translates to 'front'. This term was used in the context of the skull due to the location of the Bregma at the front part of the skull.
Anatomy
The Bregma is located at the intersection of two major cranial sutures. The coronal suture is the line of fusion that separates the frontal bone from the two parietal bones. The sagittal suture is the line of fusion that connects the two parietal bones. The point where these two sutures meet is the Bregma.
In newborns and infants, the Bregma is known as the anterior fontanelle, a soft spot on the skull that allows for rapid brain growth. The anterior fontanelle typically closes by the age of two, at which point it is referred to as the Bregma.
Clinical Significance
The Bregma is a significant landmark in both neuroanatomy and cranial anatomy. It is used as a reference point in neurosurgery and is also used to measure cranial index in anthropological studies. Changes in the position or condition of the Bregma can indicate certain medical conditions, such as craniosynostosis, a condition where the sutures of a baby's skull close too early.
Related Terms
External links
- Medical encyclopedia article on Bregma
- Wikipedia's article - Bregma
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