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Anatomy Atlases: Illustrated Encyclopedia of Human Anatomic Variation: Opus III: Nervous System: Brain: Insula Title

Illustrated Encyclopedia of Human Anatomic Variation: Opus III: Nervous System: Brain


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

Peer Review Status: Internally Peer Reviewed

In a study of 200 brains, including a few mentally retarded individuals, paralytics, and a series of young fetuses, it was found that the left insula was more deeply marked by sulci than the right, and that its length, on average, was greater by 11 mm. The central sulcus of the insula is usually the first to appear developmentally, and it is more pronounced in males.


Reil, -. (1812) Mangel des mittleren und freyen theils des Balkens im Menschengehirn. Arch. Physiol. 11:341-344.

Sergi, S. (1911) Variations des Sillons de l'insula dans le cerveau humain. Arch. Ital. Biol. 55:139-140.

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