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Cranial Sutures
Cranial sutures and the bones they separate
5
Medical
Graduate
06/30/2012

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Term
Metopic Suture
Definition
allows the frontal bone to behave as a paired cranial bone therefore it moves into external rotation during craniosacral flexion and internal rotation during craniosacral extension. present at birth,  At one year of age it is still open, at three years of age it is partially open and by six years of age it either closes completely for a lifetime or remains partially open for a lifetime.
Term
Coronal Suture
Definition
present for a lifetime and separates the frontal and parietal bones
Term
Lamboidal Suture
Definition
present for a lifetime and separates the parietal and occipital bones 
Term
Sagittal Suture
Definition
present for a lifetime and separates the two parietal bones
Term
Sphenofrontal Suture
Definition
present for a lifetime and separates the frontal and sphenoid bones
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