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The tela choroidea (or tela chorioidea) is a region of meningeal pia mater that adheres to the underlying ependyma, and gives rise to the choroid plexus in each of the brain’s four ventricles. [ 1 ] [ 2 ] Tela is Latin for woven and is used to describe a web-like membrane or layer. [ 3 ]
The choroid plexus, or plica choroidea, is a plexus of cells that arises from the tela choroidea in each of the ventricles of the brain. [1] Regions of the choroid plexus produce and secrete most of the cerebrospinal fluid (CSF) of the central nervous system .
The torn edge of this plexus is called the tela choroidea. [1] On the surface of the terminal vein is a narrow white band, named the lamina affixa. GDF-15/MIC-1 has been observed in lamina affixa cells. [2]
The roof of the ventricle comprises choroid plexus, forming the inferior central portion of the tela choroidea; immediately above the superior central portion of the tela choroidea is the fornix. The lateral side of the ventricle is marked by a sulcus – the hypothalamic sulcus – from the inferior side of the interventricular foramina to the ...
The inferior medullary velum (posterior medullary velum) is a thin layer of white substance, prolonged from the white center of the cerebellum, above and on either side of the nodule; it forms the infero-posterior part of the fourth ventricle.
Within the ventricles of the brain, a population of modified ependymal cells and capillaries together known as the tela choroidea form a structure called the choroid plexus, which produces the CSF. [5] Modified tight junctions between epithelial cells control fluid release. This release allows free exchange between CSF and nervous tissue of ...
Within anatomy for the circulatory system, the plexal point or ventral choroidal point is the proposed naming for the point at which the anterior choroidal artery enters into the lateral ventricle of the brain at the tela choroidea.
The roof of fourth ventricle is the dorsal surface of the fourth ventricle.. It corresponds to the ventral surface of the cerebellum.. The upper portion of the roof is formed by the cerebellum.