Nigra
Nigra
Nigra (pronunciation: /ˈnaɪɡrə/) is a Latin term that translates to "black" in English. It is often used in medical terminology to denote areas or structures that are darker in color due to the presence of certain substances, such as melanin or other pigments.
Etymology
The term "nigra" originates from the Latin word "niger", which means black. It has been used in the medical field to describe various conditions and anatomical structures that are characterized by a darker color.
Related Terms
- Substantia Nigra: A part of the brain that is darker in color due to the presence of melanin. It plays a crucial role in reward, addiction, and movement. Damage to this area is associated with Parkinson's disease.
- Linea Nigra: A dark vertical line that appears on the abdomen during about three quarters of all pregnancies. The brownish streak is usually about a centimeter in width.
- Nigral Degeneration: A condition characterized by the degeneration of the substantia nigra, often associated with Parkinson's disease.
- Nigral Cells: Neurons located in the substantia nigra. These cells produce dopamine, a neurotransmitter that plays a key role in the brain's reward system and motor functions.
See Also
External links
- Medical encyclopedia article on Nigra
- Wikipedia's article - Nigra
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