Coronal suture

The coronal suture is a dense, fibrous connective tissue joint that separates the two parietal bones from the frontal bone of the skull.

Coronal suture
Anterolateral view of coronal suture (red)
Details
Part of	Skull
System	Skeletal
Nerve	Trigeminal nerve
Identifiers
Latin	sutura coronalis
TA98	A03.1.02.002
TA2	1575
FMA	52928
Anatomical terminology [edit on Wikidata]

Structure

The coronal suture lies between the paired parietal bones and the frontal bone of the skull.^[1] It runs from the pterion on each side.

Nerve supply

The coronal suture is likely supplied by a branch of the trigeminal nerve.^[2]

Development

The coronal suture is derived from the paraxial mesoderm.

Clinical significance

If certain bones of the skull grow too fast then premature fusion of the sutures, craniosynostosis, may occur.^[1] This can result in skull deformities.^[1] These deformities include:^[3]

• Brachycephaly (both sides)
• Plagiocephaly (one side only)
• Oxycephaly (both sides)

References

1. Carlson, Bruce M. (2014-01-01). "9 - Integumentary, Skeletal, and Muscular Systems". Human Embryology and Developmental Biology (5th ed.). Saunders. pp. 156–192. doi:10.1016/b978-1-4557-2794-0.00009-7. ISBN 978-1-4557-2794-0.
2. Barral, Jean-Pierre; Croibier, Alain (2009-01-01). "2 - Characteristics of cranial nerves". Manual Therapy for the Cranial Nerves. Churchill Livingstone. pp. 7–14. ISBN 978-0-7020-3100-7.
3. "Craniosynostosis". Children's Hospitals and Clinics of Minnesota. 2015. Retrieved November 1, 2023.

• "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

• 
  Animation. Coronal suture shown in red.
• 
  Frontal bone and parietal bones.
• 
  Side view of the skull. ('Coronal suture' indicated by the arrow.)
• 
  Superior view of anterior part of the skull. Coronal suture runs horizontally.
• 
  Coronal suture seen from inside.
• 
  The skull at birth, showing the lateral fontanelle.
• 
  Coronal suture of new born baby.

External links

• "Anatomy diagram: 34256.000-1". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2012-12-27.
• "Anatomy diagram: 34256.000-2". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2013-06-11.