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10 Cards in this Set
- Front
- Back
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In an immature skull, what temporary structure would we find at the bregma?
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Anterior fontanelle
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When should this structure disappear in a normal infant?
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2nd year of life
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When is the posterior fontanelle closed?
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2 - 3 months after birth.
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What are the fontanelle for?
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Allow for expansion of the cranial cavity due to the developing brain.
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Is the bony nasal septum invariably absolutely in the midline?
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No, it deviates slightly.
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What is the structure in the midline of the chin present in immature bone?
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Symphysis menti. (mandible ossifies in right and left halves).
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by what age should the symphysis menti have disappeared in a normal infant?
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By end of first year of life.
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What is the suture on the frontal bone?
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Metopic suture
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What does presence of the Metopic suture tell us about the development of the frontal bone?
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That the frontal bone ossified in two halves.
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By what age should the Metopic suture have disappeared in Caucasian individuals?
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Begins in 2nd year of life and usually complete by 8th year.
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