Substantia Nigra Definition

nīgrə, nĭgrə
substantiae-nigrae, substantia-nigras
noun
A layer of dark cells in the midbrain that produce dopamine.
Webster's New World
Synonyms:
  • locus niger
  • nucleus niger

Other Word Forms of Substantia Nigra

Noun

Singular:
substantia nigra
Plural:
substantia-nigras, substantiae-nigrae

Origin of Substantia Nigra

  • New Latin Latin substantia substance Latin nigra feminine of niger black

    From American Heritage Dictionary of the English Language, 5th Edition

  • Directly from Latin meaning the black body or substance.

    From Wiktionary

Substantia Nigra Sentence Examples

  • In a complete albino not only is all pigment absent in the skin, but also that which is normally present in deeper organs, such as the sympathetic nervous system and in the substantia nigra of the brain.

  • It is thought to depend upon some connexion, not yet anatomically demonstrated, between the third cranial nerve and its nucleus in the floor of the iter and the substantia nigra.

  • The neurodegeneration, or neuronal cell loss, is specific to a region of the brainstem known as the substantia nigra pars compacta.

  • A portion of the basal ganglia called the substantia nigra sends electrical signals that block output from another structure called the subthalamic nucleus.

Related Articles

Substantia Nigra Is Also Mentioned In

Find Similar Words

Find similar words to substantia nigra using the buttons below.

Words Starting With

SSUSUB

Words Ending With

ARAGRA

Unscrambles

substantia nigra

Words Starting With S and Ending With A

Starts With S & Ends With AStarts With SU & Ends With AStarts With S & Ends With RA

Word Length