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substantia nigra

play
noun sub·stan·tia ni·gra \səb-ˌstan(t)-shē-ə-ˈnī-grə, -ˈni-\

Definition of substantia nigra

plural substantiae nigrae play \-chē-ˌē-ˈnī-(ˌ)grē, -ˈni-\

  1. :  a layer of deeply pigmented gray matter situated in the midbrain and containing the cell bodies of a tract of dopamine-producing nerve cells whose secretion tends to be deficient in Parkinson's disease



Origin of substantia nigra

New Latin, literally, black substance


First Known Use: circa 1882


Medical Dictionary

substantia nigra

play play
noun sub·stan·tia ni·gra \səb-ˌstan-chē-ə-ˈnī-grə, -ˈnig-rə\

Medical Definition of substantia nigra

plural substantiae nigrae \-chē-ˌē-ˈnī-(ˌ)grē, -ˈnig-(ˌ)rē\play play

  1. :  a layer of deeply pigmented gray matter situated in the midbrain and containing the cell bodies of a tract of dopamine-producing nerve cells whose secretion tends to be deficient in Parkinson's disease




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