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frontal bone
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The frontal bone is one of four main bones which make up the vault of the cranium, the others being the two parietal bones and the occipital bone.
The frontal bone has two parts: the vertical portion, called the squama frontalis, which comprises the substance of the forehead; and the orbital or horizontal portion, called the pars orbitalis, which overhangs the orbital cavities in front. Separating the frontal bone and the parietals is the coronal suture.
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