<prompt> Protoplasmic astrocytes are located in ?Gray matterWhite matterInside blood vesselsInside neurons  <response>: Ans. isai.e., Gray matterRef: Clinical neurology 4he p. 7111There are following types of astrocytes :Protoplasmic AstrocytesThey are located in gray matter in close association with neurons.They provide nutrients, assist in metabolism and help in formation of blood-brain-barrier. 