choroid plexus

views updated May 11 2018

choroid plexus A membrane rich in blood vessels that lines the ventricles of the brain. It is an extension of the pia mater and secretes cerebrospinal fluid into the ventricles; it also controls exchange of materials between the blood and cerebrospinal fluid.

choroid plexus

views updated May 23 2018

choroid plexus n. a rich network of blood vessels, derived from those of the pia mater, in each of the brain's ventricles. It is responsible for the production of cerebrospinal fluid.

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