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The skull consists of five thin, curved, bony plates that are held together by fibrous material called sutures. These sutures allow a baby's skull to expand with the growing brain. The sutures gradually harden to join the skull bones together. The spaces where sutures meet are called soft spots or fontanelles.
Last Revised: January 24, 2012
Author: Healthwise Staff
Medical Review: John Pope, MD - Pediatrics & Christian G. Zimmerman, MD, FACS, MBA - Neurological Surgery
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