The two different classifications of glial limiting membrane, the glia limitans perivascularis and the glia limitans superficialis, have nearly identical structures, however, they can be distinguished from each other by their location within the brain.
12.
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.
13.
In early development of the retina, the medullary epithelial cells acquire polarity, such that a basement membrane associated with the vitreous forms the internal limiting membrane on one side, while terminal bars form the outer limiting membrane on the other side.
14.
In early development of the retina, the medullary epithelial cells acquire polarity, such that a basement membrane associated with the vitreous forms the internal limiting membrane on one side, while terminal bars form the outer limiting membrane on the other side.
15.
The reason that different routes of administration lead to different cell types being transfected ( e . g ., different tropism ) is that the inner limiting membrane ( ILM ) and the various retinal layers act as physical barriers for the delivery of drugs and vectors to the deeper retinal layers.
