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The glia limitans, or the glial limiting membrane, is a thin barrier of astrocyte foot processes associated with the parenchymal basal lamina surrounding the brain and spinal cord. It is the outermost layer of neural tissue, and among its responsibilities is the prevention of the over-migration of neurons and neuroglia, the supporting cells of the nervous system, into the meninges. The glia limitans also plays an important role in regulating the movement of small molecules and cells into the brain tissue by working in concert with other components of the central nervous system (CNS) such as the blood–brain barrier (BBB).

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  • دبق محدد (ar)
  • Glia limitans (en)
  • Пограничная глиальная мембрана (ru)
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  • الدبق المُحدد أو الغشاء المحدّد الدبقي يشكل هو حاجز رقيقة من عمليات القدم النجمية المرتبطة بالصفيحة القاعدية البرنشيمية المحيطة بالدماغ والحبل الشوكي. وهي الطبقة الخارجية للأنسجة العصبية، ومن بين مسؤولياتها منع الهجرة المفرطة للخلايا العصبية والخلايا العصبية الخلايا الداعمة للجهاز العصبي إلى السحايا. يلعب الدبق المُحدد أيضًا دورًا مهمًا في تنظيم حركة الجزيئات الصغيرة والخلايا في أنسجة المخ من خلال العمل بالتنسيق مع المكونات الأخرى للجهاز العصبي المركزي (CNS) مثل الحاجز الدموي الدماغي (BBB). (ar)
  • The glia limitans, or the glial limiting membrane, is a thin barrier of astrocyte foot processes associated with the parenchymal basal lamina surrounding the brain and spinal cord. It is the outermost layer of neural tissue, and among its responsibilities is the prevention of the over-migration of neurons and neuroglia, the supporting cells of the nervous system, into the meninges. The glia limitans also plays an important role in regulating the movement of small molecules and cells into the brain tissue by working in concert with other components of the central nervous system (CNS) such as the blood–brain barrier (BBB). (en)
  • Пограничная глиальная мембрана (glia limitans) - самый верхний слой нервной ткани головного мозга, лежащий непосредственно под мягкой мозговой оболочкой. Пограничная глиальная мембрана состоит из переплетающихся отростков астроцитов, покрытых базальной пластинкой, непосредственно контактирующей с клетками мягкой мозговой оболочки. Некоторые отростки астроцитов, «ножки» (endfeet), крепко присоединены к базальной пластинке особыми белковыми комплексами, напоминающими гемидесмосомы. (ru)
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  • Glia limitans (en)
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  • Glia limitans (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Brain_layers.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Glial_distribution_of_Cu_Zn_SOD_immunoreactivity_in_rat_glia_limitans.jpg
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