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Encyclopedia entry

Orbital Sulcus

Version 1

Abstract

In its simplest form, this sulcus is triradiate with an anterior branch (orbitalis anterior) and two posterior branches (orbitalis posterior and lateralis). The two posterior branches form a U-shaped furrow with a caudally directed concavity. A second anterior branch (orbitalis anterior lateralis) may be present lateral to the orbitalis anterior branch. The orbitalis anterior lateralis may join with the U-shaped furrow and with the orbitalis anterior forming an H-shaped configuration. The two longitudinal arms of the H-shaped pattern may separate to form two distinct sagittal furrows.

In its simplest form, this sulcus is triradiate with an anterior branch (orbitalis anterior) and two posterior branches (orbitalis posterior and lateralis). The two posterior branches form a U-shaped furrow with a caudally directed concavity. A second anterior branch (orbitalis anterior lateralis) may be present lateral to the orbitalis anterior branch. The orbitalis anterior lateralis may join with the U-shaped furrow and with the orbitalis anterior forming an H-shaped configuration. The two longitudinal arms of the H-shaped pattern may separate to form two distinct sagittal furrows.

Riferimenti dell’opera originale

Elenco riportato come compare nella fonte, senza normalizzazione dei formati bibliografici.

  • Chi, T.K. and C. Chang. (1941) The sulcal pattern of the Chinese brain. Am. J. Phys. Anthropol. 28:167-207.
  • Connolly, C.J. (1941) The fissural pattern in the brain of Negroes and Whites. The frontal lobe. Am. J. Physiol. Anthrop. 28:133-165.
  • Connolly, C.J. (1942) The fissural pattern in the brain of Negroes and Whites. The parietal and temporal lobes. Am. J. Physiol. Anthrop. 29:225-265.
  • Cunningham, D.J. (1890) The fissure of Rolando. J. Anat. Physiol. 25:1-23.
  • Debierre, C. (1891) Sur les anomalies des circonvolutions du cervéau de l'homme. Duplicilé de la sissure de Rolando, absence de la scissure de Rolando. Soc. Biol. Comptes Rendus Hebdomadaires des Séances et Mémoires. 43:369-372.
  • Gerlach, E.J. and H. Weber. (1929) über ein menschliches Gehirn mit beiderseitger Verdoppelung der Zentralfurche. Anat. Anz. 67:440-452.
  • Leggiardi-Laura, C. (1901) Sur la signification de la "duplicité de la scissure de Rolando" et sur un rapport constant de la scissure post-rolandique. Arch. Ital. Biol. 36:355.
  • Linell, E.A. and B.M. Koster. (1924) A developmental anomaly of the cerebral cortex. Arch. Neurol. Psychiatry 12:167-172.
  • Sergi, S. (1911) Variations de developpement du lobe frontal chez l'homme. Arch. Ital. Biol. 55:138-139.
  • Sperino, G. (1901) Decrizione morfologica dell'encefalo del Prof. Carlo Giacomini. Int. Monatsschrift. Anatomie and Physiology 18:313-386.
  • Thompson, R.B. (1911-12) Complete unilateral interruption of the fissure of Rolando. J. Anat. Physiol. 45:433-437.
  • Tricomi, G. (1902) Deux cas de duplicité du sulcus Rolandi. Arch. Ital. Biol. 37:490.

Anatomical classification

Content provenance

Adaptation

Adaptation of «Orbital Sulcus — Illustrated Encyclopedia of Human Anatomic Variation: Opus I: Muscular System» by Ronald A. Bergman, Adel K. Afifi, Ryosuke Miyauchi. Source: https://www.anatomyatlases.org/AnatomicVariants/NervousSystem/Text/OrbitalSulcus.shtml Original work distributed under the CC BY-NC-SA 4.0 licence (https://creativecommons.org/licenses/by-nc-sa/4.0/deed.it). Adaptation by Redazione AIVA. Changes from the original: Testo originale inglese riprodotto integralmente e riorganizzato nel formato scheda del portale (sintesi, testo, riferimenti), senza modificarne le affermazioni. La traduzione italiana non è ancora stata eseguita, e la pagina lo dichiara. Le figure non sono state copiate: sono collegate alla pagina d’origine. This publication is not approved or endorsed by the authors of the original work.

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