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child’s skull click to hear : child’s skull

The skull bones of the fetus and child are separated by membranous spaces (fontanelles). They disappear during the course of ossification.
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See child’s skull in : french | spanish
frontal bone coronal suture anterior fontanelle parietal bone posterior fontanelle occipital bone mastoid fontanelle sphenoidal fontanelle

frontal bone click to hear : frontal bone

Flat skull bone forming the forehead and top of the eye sockets, and articulating especially with the parietal.

coronal suture click to hear : coronal suture

Joint connecting the frontal and parietal bones on each side of the skull; it ossifies during the growth years (the anterior fontanelle closes up).

anterior fontanelle click to hear : anterior fontanelle

Membranous space between the frontal and two parietal bones; it closes usually at the age of two or three years. This is the largest of the fontanelles.

parietal bone click to hear : parietal bone

Flat cranial bone fusing especially to the frontal and occipital bones during the growth years.

posterior fontanelle click to hear : posterior fontanelle

Membranous space between the occipital and two parietal bones; it closes at about the age of two or three months. This fontanelle is smaller than the anterior fontanelle.

occipital bone click to hear : occipital bone

Flat cranial bone fusing especially to the parietal bone and atlas (first cervical vertebra) during the growth years.

mastoid fontanelle click to hear : mastoid fontanelle

Membranous space between the parietal, occipital and temporal bones; it closes at about the age of 18 months. This fontanelle is smaller than the sphenoidal fontanelle.

sphenoidal fontanelle click to hear : sphenoidal fontanelle

Membranous space between the frontal, parietal, temporal and sphenoid bones; it closes at about the age of two or three months.