Estudo neuroanatomico do ramo orbitofrontal da artéria cerebral anterior em cerebros humanos

Lemos, Vicente Paulo Jorge; Medeiros, Marta Maria das Chagas; Carvalho, Regina Coeli Marques de

doi:10.1590/S0004-282X1984000100002

Resumos

Estudo neuroanatômico da artéria orbitofrontal, considerando frequência, origem e distribuição, foi realizado em 50 encéfalos humanos, dissecados sob lupa estereoscópica. Os resultados alcançados contribuem para caracterizar este ramo da artéria cerebral anterior como entidade anatômica bem definida. Do ponto de vista filogenético, foi considerada a hipótese de homologia entre a artéria orbitofrontal e os ramos orbitário posterior e orbitário anterior dos primatas sub-humanos.

The neuroanatomic study of the orbitofrontal branch of the anterior cerebral artery was performed by simple and careful dissection in 50 human brains. The observation was carried out with stereoscopic magnifying glass. The results with regard to frequency and origin of the artery were the following: the orbitofrontal artery was present in 90% (45/50) of the cases on the right hemisphere and 92% (46/50) on the left hemisphere; in 26 cases (52%) on the right side and 34 cases (68%) on the opposite side, the artery arose between anterior communicating and frontopolar arteries; in 19 cases (38%) on the right side and 12 cases (24%) on the left side the vessel was not the classical first branch of the postcommunical segment of the anterior cerebral artery, it arose between the Heubner artery and the frontopolar artery. With regard at filogenetic signification of the orbitofrontal artery it has been formulated the hypothesis that the artery is homologous to posterior and anterior orbital branches of the anterior cerebral artery described by Watts in sub-human primates.

Estudo neuroanatomico do ramo orbitofrontal da artéria cerebral anterior em cerebros humanos

Neuroanatomic study of the orbitofrontal branch of the anterior cerebral artery in human brains

Vicente Paulo Jorge Lemos^I; Marta Maria das Chagas Medeiros^II; Regina Coeli Marques de Carvalho^II

^IProfessor Adjunto. Departamento de Morfologia do Centro de Ciências da Saúde da Universidade Federal do Ceará (UFCe)

^IIBolsista do Plano de Iniciação à Pesquisa da UFCe. Departamento de Morfologia do Centro de Ciências da Saúde da Universidade Federal do Ceará (UFCe)

RESUMO

Estudo neuroanatômico da artéria orbitofrontal, considerando frequência, origem e distribuição, foi realizado em 50 encéfalos humanos, dissecados sob lupa estereoscópica. Os resultados alcançados contribuem para caracterizar este ramo da artéria cerebral anterior como entidade anatômica bem definida. Do ponto de vista filogenético, foi considerada a hipótese de homologia entre a artéria orbitofrontal e os ramos orbitário posterior e orbitário anterior dos primatas sub-humanos.

SUMMARY

The neuroanatomic study of the orbitofrontal branch of the anterior cerebral artery was performed by simple and careful dissection in 50 human brains. The observation was carried out with stereoscopic magnifying glass. The results with regard to frequency and origin of the artery were the following: the orbitofrontal artery was present in 90% (45/50) of the cases on the right hemisphere and 92% (46/50) on the left hemisphere; in 26 cases (52%) on the right side and 34 cases (68%) on the opposite side, the artery arose between anterior communicating and frontopolar arteries; in 19 cases (38%) on the right side and 12 cases (24%) on the left side the vessel was not the classical first branch of the postcommunical segment of the anterior cerebral artery, it arose between the Heubner artery and the frontopolar artery. With regard at filogenetic signification of the orbitofrontal artery it has been formulated the hypothesis that the artery is homologous to posterior and anterior orbital branches of the anterior cerebral artery described by Watts in sub-human primates.

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Trabalho do Departamento de Morfologia do Centro de Ciências da Saúde da Universidade Federal do Ceará (UFCe).

Departamento de Morfologia - Centro de Ciências da Saúde - Universidade Federal do Ceará - Caixa Postal 688 - Fortaleza 60.000 - CE - Brasil.

1. ABBIE, A. A. - The morphology of the fore-brain arteries with especial reference to the evolution of the basal ganglia. J. Anat. (London) 68:433, 1934.
2. CRITCHLEY, M. - The anterior cerebral artery and its syndromes. Brain 53: 120, 1930.
3. FOIX, C. & HILLEMAND, P. - Les syndromes de l'artère cérébrale anterieure. L'Encéphale 20:209, 1925.
4. KRAYENBUHL, H. & YASARGIL, M. G. - Radiological anatomy and topography of the cerebral arteries In: VINKEN, P. J. & BRUYN, G. W. - Handbook Clinical Neurology 11:79, 1972. North-Holland, Amsterdam.
5. LAZORTHES, G.; GAUBERT, J. & POULHES, J. - La distribution centrale et cortical e de Tartere cérébrale antérieure. Étude anatomique et incidences neurochirurgicales. Neurochir. (Paris) 2:237, 1956.
6. LEMOS, V.P. - Ramo recorrente da artéria cerebral anterior: um estudo neuroanatômico do segmento extracerebral. Rev. bras. Pesq. méd. biol. 10:21, 1977.
7. MARINO Jr., R. - The anterior cerebral artery: I. Anatomo-radiological study of its cortical territories. Surg. Neurol. 5:81, 1976.
8. PERLMUTTER, D. & RHOTON Jr., A. L. - Microsurgical anatomy of the distal anterior cerebral artery. J. Neurosurg. 49:204, 1978.
9. RING, B. A. & WADDINGTON, M. M. - Roentgenographic anatomy of the pericallosal arteries. Am. J. Roentgenol. 104:109, 1968.
10. SALAMON, G. & HUANG, Y. P. - Radiologic anatomy of the brain. Springer, Berlin, 1976.
11. SHELLSHEAR, J. A. - A contribution to our knowledge of the arterial supply of the cerebral cortex in man. Brain 50:236, 1927.
12. WATTS, J. W. - A comparative study of the anterior cerebral artery and the circle of Willis. J. Anat. (London) 68:534, 1934.

Datas de Publicação

Publicação nesta coleção
14 Ago 2012
Data do Fascículo
Mar 1984

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

[1] 1. ABBIE, A. A. - The morphology of the fore-brain arteries with especial reference to the evolution of the basal ganglia. J. Anat. (London) 68:433, 1934.

[2] 2. CRITCHLEY, M. - The anterior cerebral artery and its syndromes. Brain 53: 120, 1930.

[3] 3. FOIX, C. & HILLEMAND, P. - Les syndromes de l'artère cérébrale anterieure. L'Encéphale 20:209, 1925.

[4] 4. KRAYENBUHL, H. & YASARGIL, M. G. - Radiological anatomy and topography of the cerebral arteries In: VINKEN, P. J. & BRUYN, G. W. - Handbook Clinical Neurology 11:79, 1972. North-Holland, Amsterdam.

[5] 5. LAZORTHES, G.; GAUBERT, J. & POULHES, J. - La distribution centrale et cortical e de Tartere cérébrale antérieure. Étude anatomique et incidences neurochirurgicales. Neurochir. (Paris) 2:237, 1956.

[6] 6. LEMOS, V.P. - Ramo recorrente da artéria cerebral anterior: um estudo neuroanatômico do segmento extracerebral. Rev. bras. Pesq. méd. biol. 10:21, 1977.

[7] 7. MARINO Jr., R. - The anterior cerebral artery: I. Anatomo-radiological study of its cortical territories. Surg. Neurol. 5:81, 1976.

[8] 8. PERLMUTTER, D. & RHOTON Jr., A. L. - Microsurgical anatomy of the distal anterior cerebral artery. J. Neurosurg. 49:204, 1978.

[9] 9. RING, B. A. & WADDINGTON, M. M. - Roentgenographic anatomy of the pericallosal arteries. Am. J. Roentgenol. 104:109, 1968.

[10] 10. SALAMON, G. & HUANG, Y. P. - Radiologic anatomy of the brain. Springer, Berlin, 1976.

[11] 11. SHELLSHEAR, J. A. - A contribution to our knowledge of the arterial supply of the cerebral cortex in man. Brain 50:236, 1927.

[12] 12. WATTS, J. W. - A comparative study of the anterior cerebral artery and the circle of Willis. J. Anat. (London) 68:534, 1934.