<unk>  formation (gliosis) is a reactive cellular process involving astrogliosis that occurs after injury to the central nervous system. As with<unk> ring in other organs and tissues, the<unk>  is the body's mechanism to protect and begin the healing process in the nervous system. In the context of neurodegeneration, formation of the<unk>  has been shown to have both beneficial and detrimental effects. Particularly, many neuro-developmental inhibitor molecules are secreted by the cells within the<unk>  that prevent complete physical and functional recovery of the central nervous system after injury or disease. On the other hand, absence of the<unk>  has been associated with impairments in the repair of the blood brain barrier.
Glial scar
Vitreous bulge
Vitreomacular adhesion
Otic pit
Protruding ear
Macular hole
Astasis
Optokinetic drum