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Anatomy Atlases: Illustrated Encyclopedia of Human Anatomic Variation: Opus V: Skeletal Systems: Bipartite Parietal Bone. Enlarged Parietal Foramina

Illustrated Encyclopedia of Human Anatomic Variation: Opus V: Skeletal Systems

Bipartite Parietal Bone.
Enlarged Parietal Foramina

Ronald A. Bergman, PhD
Adel K. Afifi, MD, MS
Ryosuke Miyauchi, MD

Peer Review Status: Internally Peer Reviewed


1

Skull of a 15- to 18-year-old youth. P,P, Right bipartite parietal bone; *, congenital suture.

2

Bilateral parietal foramina.

Parietal foramina transmit veins that drain into the superior sagittal sinus and an artery, a small branch of the occipital artery, that supplies the dura mater. Although the foramina have a reported frequency of 60%, they may be absent on one or both sides.

From Gruber, W. über congenitale Theilungdes Parietal durch eine quere oder schräge Sutur. Arch. Pathol. Anat. Physiol. Klin. Med. 50:113-124, 1870; and über congenital abnorm weite Foramina parietalia. Ibid. 50:124-134, 1870.

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