Disorders of trigeminal nerve (Q41298): Difference between revisions
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O nervo trigêmeo é um nervo misto com três divisões, divisões oftálmica, maxilar e mandibular, que fornece inervação sensorial para a face e mucosas das cavidades oral e nasal e inervação motora para os músculos da mastigação, tensor do tímpano, tensor do véu palatino, milo-hióideo e ventre anterior do músculo digástrico. O complexo nuclear trigeminal se estende por todo o tronco encefálico, portanto, é suscetível a muitos processos patológicos, incluindo desmielinização, isquemia, hemorragia, inflamação infecciosa e não infecciosa e neoplasia, levando a sintomas de envolvimento do nervo trigêmeo. A compressão da raiz sensorial do nervo fora do tronco encefálico por uma alça vascular ocasiona a neuralgia do trigêmeo. Sintomas e sinais dependem da localização da lesão. Em geral, um transtorno do nervo trigêmeo está associado à perda de sensibilidade hemifacial, desvio da mandíbula para o lado paralisado à abertura da boca e perda do reflexo corneano. | |||
| description / en | description / en | ||
The trigeminal nerve is a mixed nerve with three divisions, ophthalmic, maxillary and mandibular divisions, that provides sensory innervation to the face and mucous membrane of the oral and nasal cavities and motor innervations to the muscle of mastication, tensor tympani, tensor veli palatine, mylohyoid and anterior belly of the digastric muscle. The trigeminal nuclear complex extends throughout the brainstem, hence it is susceptible to many pathologic processes including demyelination, ischemia, haemorrhage, infectious and non-infectious inflammation and neoplasm leading to symptoms of trigeminal nerve involvement. Compression of the sensory nerve root outside the brain stem by a vascular loop leads to trigeminal neuralgia. Symptoms and signs depend on the site of the lesion. In general, a trigeminal nerve disorder is associated with hemisensory facial loss, deviation of the jaw to paralysed side on opening of the mouth, and loss of the corneal reflex. | |||
Revision as of 07:25, 13 August 2026
The trigeminal nerve is a mixed nerve with three divisions, ophthalmic, maxillary and mandibular divisions, that provides sensory innervation to the face and mucous membrane of the oral and nasal cavities and motor innervations to the muscle of mastication, tensor tympani, tensor veli palatine, mylohyoid and anterior belly of the digastric muscle. The trigeminal nuclear complex extends throughout the brainstem, hence it is susceptible to many pathologic processes including demyelination, ischemia, haemorrhage, infectious and non-infectious inflammation and neoplasm leading to symptoms of trigeminal nerve involvement. Compression of the sensory nerve root outside the brain stem by a vascular loop leads to trigeminal neuralgia. Symptoms and signs depend on the site of the lesion. In general, a trigeminal nerve disorder is associated with hemisensory facial loss, deviation of the jaw to paralysed side on opening of the mouth, and loss of the corneal reflex.
| Language | Label | Description | Also known as |
|---|---|---|---|
| default for all languages | 8B82 |
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| English | Disorders of trigeminal nerve |
The trigeminal nerve is a mixed nerve with three divisions, ophthalmic, maxillary and mandibular divisions, that provides sensory innervation to the face and mucous membrane of the oral and nasal cavities and motor innervations to the muscle of mastication, tensor tympani, tensor veli palatine, mylohyoid and anterior belly of the digastric muscle. The trigeminal nuclear complex extends throughout the brainstem, hence it is susceptible to many pathologic processes including demyelination, ischemia, haemorrhage, infectious and non-infectious inflammation and neoplasm leading to symptoms of trigeminal nerve involvement. Compression of the sensory nerve root outside the brain stem by a vascular loop leads to trigeminal neuralgia. Symptoms and signs depend on the site of the lesion. In general, a trigeminal nerve disorder is associated with hemisensory facial loss, deviation of the jaw to paralysed side on opening of the mouth, and loss of the corneal reflex. |
