Left parietal bone

Os parietale sinistrum

SkeletalSkeletonHeadLeft side

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What it is
Left parietal bone: a large, gently curved square plate forming the side and roof of the cranium, meeting its partner at the sagittal suture.
Function
Protects the parietal lobes and gives attachment to the temporalis fascia.
Size
≈ 12 × 12 cm, 5–7 mm thick
Clinical note
The parietal eminence is the widest point of the skull; the fontanelles of the newborn lie at its corners.