Coronal suture

The coronal suture is a dense, fibrous connective tissue joint that separates the frontal and parietal bones of the skull. At birth, the bones of the skull do not meet.

Clinical significance

If certain bones of the skull grow too fast then "premature closure" of the sutures may occur. This can result in skull deformities. There are two possible deformities that can be caused by the premature closure of the coronal suture:

• a high, tower-like skull called "oxycephaly"
• a twisted and asymmetrical skull called "plagiocephaly"

coronal suture derived from the paraxial mesoderm

References

• "Sagittal suture." Stedman's Medical Dictionary, 27th ed. (2000).
• Moore, Keith L., and T.V.N. Persaud. The Developing Human: Clinically Oriented Embryology, 7th ed. (2003).

Additional images

• Coronal suture - animation04.gif

  Animation. Coronal suture shown in red.

• Coronal suture - animation08.gif

  Frontal bone and parietal bones.

• 

  Side view of the skull. ('Coronal suture' indicated by the arrow.)

• Coronal suture 2.jpg

  Superior view of anterior part of the skull. Coronal suture runs horizontally.

• Sobo 1909 47 - Coronal suture.png

  Coronal suture seen from inside.

• 

  The skull at birth, showing the lateral fontanelle.

• Coronal suture.jpg

  Coronal suture of new born baby.

External links

• Anatomy diagram: 34256.000-1 at Roche Lexicon - illustrated navigator, Elsevier
• Anatomy diagram: 34256.000-2 at Roche Lexicon - illustrated navigator, Elsevier