alexa [Postnatal enlargement of the foramina rotundum, ovale et spinosum and their topographical changes].
Medicine

Medicine

Anatomy & Physiology: Current Research

Author(s): Lang J, Maier R, Schafhauser O

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Abstract In the newborn the Canalis (Foramen) rotundus is about 2.5 mm and in 15-til 17-year-old about 3 mm in length. The Apertura interna postnatal develops in width from 2.06 to 3.50 mm and in height from 1.8 to 2.73 mm. From the median sagittal plane the medial rim of the Apertura interna is distant about 11.0 mm in newborns and in adults 16.47 mm on the right side and 17.63 mm on the left side. Moreover the angular distance of the axis of the Canalis rotundus just across the median plane and also just across the frankfurt plane were determined. In the newborn the Foramen ovale is about 3.85 mm and in the adults about 7.2 mm in length. The width extend from 1.81 mm in the newborn to 3.7 mm in adults. In the newborn the distance from the medial rim to the median sagittal plane is about 3.9 mm, in the adults at the right side 20.9 mm and at the left side 22.5 mm in length. In the newborn the Foramen venosum (Vesalii) is about 1.0 mm in length and in the adults at the right side about 2 mm and at the left side 1.4 mm. The width increases from 1.0 to 1.14 mm at the right side and to 1.3 mm at the left side. The mean distance opposite to the median sagittal plane increases between newborn time and the adults from 10.0 mm at the right side to 15.78 mm and at the left side from 10.75 to 17.62 mm. In the newborn the Foramen spinosum is about 2.25 mm and in the adults about 2.56 mm in length. The width extends from 1.05 mm to about 2.1 mm in the adults. The distance opposite to the median sagittal plane in the newborn run to about 18.2 mm and in the adults 28.08 mm at the right side and 29.76 mm at the left side. The maximum length of the "Canalis spinosus" increases from 2.85 mm in the newborn to 7.35 mm in the adults. The lateral rim of the Foramen rotundum has a mean distance of 20.0 mm opposite to the upper edge of the Processus zygomaticus above the Tuberculum articulare in the newborn and about 43.5 mm in the adults. The mean distance from the cited reference area to the lateral rim of the Foramen ovale increases from about 15 to 34.33 mm, and from that of the Foramen spinosum from 15.3 to 31.4 mm.(ABSTRACT TRUNCATED AT 400 WORDS)
This article was published in Anat Anz and referenced in Anatomy & Physiology: Current Research

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