Frontal bone. Outer surface. ("Remains of frontal suture" identified at center.)
Skull at birth, showing frontal and occipital fonticuli.
Latin
sutura frontalis
Gray's
subject #46 178
The frontal suture is a dense connective tissue structure that divides the two halves of the frontal bone of the skull in infants and children. It usually disappears by the age of six, with the two halves of the frontal bone being fused together. If it does not disappear it may be called a "metopic suture" or "sutura frontalis persistens." If the suture is not present at birth (craniosynostosis) it will cause a keel-shaped deformity of the skull called "trigonocephaly."
References
"Frontal Suture." Stedman's Medical Dictionary, 27th ed. (2000). (Stedman's/LWW 1570345
Moore, Keith L. and T.V.N. Persaud. The Developing Human: Clinically Oriented Embryology, 7th ed. (2003).
pediatric plastic surgery, mathes and Hetz. chapter 92; nonsyndromic craniostosis.
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