Nucleus Niger (Noun)
Meaning
A layer of deeply pigmented grey matter in the midbrain; associated with the striate body; is involved in metabolic disturbances associated with Parkinson's disease and with Huntington's disease.
Classification
Nouns denoting body parts.
Examples
- The nucleus nigra is a critical component of the basal ganglia, playing a key role in movement and motor control.
- Damage to the nucleus nigra is associated with the development of Parkinson's disease, a neurodegenerative disorder characterized by tremors and motor dysfunction.
- Studies have shown that the nucleus nigra is also involved in the pathogenesis of Huntington's disease, a genetic disorder that affects movement and cognition.
- The pigmented cells of the nucleus nigra are highly susceptible to degeneration, leading to the characteristic motor symptoms of Parkinson's disease.
- Dysfunction of the nucleus nigra has been linked to a range of metabolic disturbances, including disruptions in glucose and dopamine metabolism.