FACIALIS PHENOMENON Meaning and
Definition
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Facialis phenomenon refers to a neurological condition characterized by abnormal facial movements that occur as a result of a specific stimulus. This phenomenon is also known as the "facial reflex," and it involves the involuntary contraction of muscles in the face in response to light touch or a slight sensory stimulus.
The condition gets its name from the facial nerve, also known as the seventh cranial nerve, which is responsible for controlling the muscles of the face. In normal circumstances, the facial nerve controls voluntary facial expressions. However, in individuals with the facialis phenomenon, the facial nerve may exhibit an exaggerated response to even the lightest touch or tactile sensation.
Facialis phenomenon can manifest in different ways, ranging from mild to severe cases. Some individuals may experience only slight twitches or contractions of the facial muscles, while others may exhibit more pronounced and involuntary movements. The phenomenon typically occurs on one side of the face, although it can affect both sides in some cases.
The exact cause of facialis phenomenon is not fully understood, but it is believed to result from an abnormality or dysfunction in the neural pathways that control facial motor control and sensory processing. Certain neurological conditions, such as multiple sclerosis or neurological trauma, may increase the risk of developing this phenomenon.
Treatment for facialis phenomenon depends on the underlying cause, and can involve medication, physical therapy, or other interventions aimed at managing symptoms and improving facial muscle control. It is essential to consult a healthcare professional for an accurate diagnosis and appropriate management of this condition.
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Light rubbing of the skin or a tap on the zygoma causes a quick contraction of the lip and alanasi; sometimes percussion above the zygoma causes contraction of the lip only; observed in tetany and sometimes in exophthalmic goiter.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for FACIALIS PHENOMENON
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Etymology of FACIALIS PHENOMENON
The word "facialis phenomenon" is derived from the Latin word "facies", meaning "face", and the Greek word "phainomenon", meaning "appearance" or "manifestation". "Facialis" refers to the facial nerve, which controls the muscles of facial expression. The term "facialis phenomenon" is typically used in medicine to describe various neurological manifestations or abnormalities related to the facial nerve.
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