Coronal suture

Coronal suture
Coronal suture
	Side view of the skull. ("Coronal suture" in red.)
	Superior view of the skull. ("Coronal suture" in 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]

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

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 may occur.^[1] This can result in skull deformities.^[1] There are two possible deformities that can be caused by the premature closure of the coronal suture:

a high, tower-like skull called "oxycephaly" or "turret skull".^[1]
a twisted and asymmetrical skull called "plagiocephaly".

References[]

^ ^a ^b ^c ^d 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.{{cite book}}: CS1 maint: date and year (link)
^ 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.{{cite book}}: CS1 maint: date and year (link)

"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.

[:0-1] 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.{{cite book}}: CS1 maint: date and year (link)

[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.{{cite book}}: CS1 maint: date and year (link)

[1]

[2]

v t Fibrous joints of the human skull
Syndesmosis	Pterygospinous ligament Stylohyoid ligament
Sutures	Involving the frontal bone frontoethmoidal suture frontal suture coronal suture occipitomastoid lambdoid sagittal Involving the sphenoid bone sphenoethmoidal with frontal bone with parietal bone sphenosquamosal Involving the Petrous part of the temporal bone sphenopetrosal petrosquamous squamosal Facial: palatomaxillary suture Involving the zygomatic process with sphenoid bone with temporal bone with frontal bone
Mouth	Gomphosis Periodontal fiber Periodontium Dental alveolus Gingiva Cementum