Neurology India · 2025
The Connections of the Short Arcuate Fibers of the Frontal Lobe: An Anatomical Study.
СтатьяНазвание и аннотация: Перевод пока не подготовлен
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Shah Abhidha, Jhawar Sukhdeep Singh, Goel Atul
Аннотация
BACKGROUND: We present the anatomy of the short arcuate fibers (SAF) of the brain. This anatomy is not very well depicted in literature.
AIM: The aim was to study the connections of the short association fibers of the frontal lobe of the brain.
MATERIAL AND METHODS: Five formalin-fixed frozen cadaveric brains were studied by using Klinger's method of white fiber dissection. The superficial gray matter was cored out and the connections of the SAF were studied. The SAF of each dissected frontal lobe were compared with the other specimens and the similarities and differences between them were recorded.
RESULTS: The SAF or the U fibers of the cerebral hemispheres have three distinct patterns of organization, namely, the intergyral fibers, the intragyral fibers, and the gyral-gyral linkages. The intergyral fibers are the deep connections of the SAF. The intragyral fibers and the gyral-gyral linkages are the superficial components of the SAF system. There were no significant differences found when comparing the right and left hemispheres. Constant gyral-gyral linkages were observed between the middle frontal gyrus and the precentral gyrus. The superior frontal gyrus apart from having connections with the middle frontal gyrus also had short arcuate connections with the precentral gyrus, the orbital gyri, and the inferior frontal gyrus.
CONCLUSIONS: A study of the short association fibers gives an insight into the workings and connections of the cortical structures of the brain.
AIM: The aim was to study the connections of the short association fibers of the frontal lobe of the brain.
MATERIAL AND METHODS: Five formalin-fixed frozen cadaveric brains were studied by using Klinger's method of white fiber dissection. The superficial gray matter was cored out and the connections of the SAF were studied. The SAF of each dissected frontal lobe were compared with the other specimens and the similarities and differences between them were recorded.
RESULTS: The SAF or the U fibers of the cerebral hemispheres have three distinct patterns of organization, namely, the intergyral fibers, the intragyral fibers, and the gyral-gyral linkages. The intergyral fibers are the deep connections of the SAF. The intragyral fibers and the gyral-gyral linkages are the superficial components of the SAF system. There were no significant differences found when comparing the right and left hemispheres. Constant gyral-gyral linkages were observed between the middle frontal gyrus and the precentral gyrus. The superior frontal gyrus apart from having connections with the middle frontal gyrus also had short arcuate connections with the precentral gyrus, the orbital gyri, and the inferior frontal gyrus.
CONCLUSIONS: A study of the short association fibers gives an insight into the workings and connections of the cortical structures of the brain.