Atonia
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Atonia
Atonia (pronounced: a-toe-nee-uh) is a medical term that refers to a condition where a muscle or group of muscles loses its strength or tone. This can occur in various parts of the body and is often associated with certain neurological or muscular disorders.
Etymology
The term 'Atonia' is derived from the Greek words 'a-', meaning 'without', and 'tonos', meaning 'tension' or 'tone'. Thus, it literally translates to 'without tone'.
Related Terms
- Hypotonia: A condition characterized by decreased muscle tone. It is often a symptom of a variety of health conditions, including certain genetic disorders, central nervous system disorders, and muscle diseases.
- Cataplexy: A sudden and temporary episode of muscle weakness accompanied by full conscious awareness. It is often triggered by a strong emotional response such as laughter, surprise, or anger and is a common symptom of Narcolepsy.
- Sleep Paralysis: A temporary inability to move or speak while falling asleep or upon waking. This can last a few seconds to a couple of minutes and is often accompanied by hallucinations. It is a common symptom of Narcolepsy and is thought to be caused by a state of sleep known as REM atonia.
- REM atonia: A state of muscle paralysis that occurs during REM (Rapid Eye Movement) sleep, preventing individuals from acting out their dreams. Disruptions in REM atonia can lead to sleep disorders such as REM sleep behavior disorder.
See Also
External links
- Medical encyclopedia article on Atonia
- Wikipedia's article - Atonia
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