Bell phenomenon


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Bell phenomenon

(bel),
reflex upper deviation of the eye on attempted eye closure; seen with several disorders, including facial mononeuropathies, Guillain-Barré syndrome, and myasthenia gravis.

Bell phe·nom·e·non

(bel fĕ-nom'ĕ-non)
A normal reflex of upward and outward deviation; seen with several disorders, including facial mononeuropathies, Guillain-Barré syndrome, and myasthenia gravis.

Bell,

Sir Charles, Scottish surgeon, anatomist, and physiologist, 1774-1842.
Bell law - the ventral spinal roots are motor, the dorsal are sensory. Synonym(s): Bell-Magendie law; Magendie law
Bell-Magendie law - Synonym(s): Bell law
Bell palsy - paresis or paralysis, usually unilateral, of the facial muscles, caused by dysfunction of the 7th cranial nerve. Synonym(s): peripheral facial paralysis
Bell phenomenon - upward movement of the eye on attempted eyelid closure in a patient with peripheral facial paralysis.
Bell respiratory nerve - Synonym(s): long thoracic nerve
Bell spasm - involuntary twitching of the facial muscles. Synonym(s): facial tic
external respiratory nerve of Bell - Synonym(s): long thoracic nerve

Bell phe·nom·e·non

(bel fĕ-nom'ĕ-non)
Reflex upper deviation of the eye on attempted eye closure; seen in facial mononeuropathies, Guillain-Barré syndrome, and myasthenia gravis.