The facial nerve contributes to the oropharyngeal phase of deglutition via the buccinator, perioral, digastricus posterior, and stylohyoid muscles. The gustatory and salivatory functions of the facial nerve are also known to contribute to swallowing. The relation between peripheral facial nerve palsy PFP and swallowing dysfunction has never been studied systematically. Forty four patients with unilateral Bell's palsy acute or chronic stages and 20 normal control subjects were investigated. In patients with PFP investigated within the first 2 weeks of the palsy, the dysphagia limit normalised during the period of recovery.
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Peripheral facial palsy and dysfunction of the oropharynx
Peripheral facial palsy and dysfunction of the oropharynx
Every time you chew, talk, yawn, or sense the zap of a toothache, cranial nerve cells are shuttling electrochemical signals to your brain. Some of these neurons detect pain, while others sense facial muscle movements or sensations in the skin. The findings reveal a previously unexplored feature of brain and cranial nerve development underlying eating, swallowing, and speech. The researchers examined early neural development in mice embryos with DiGeorge syndrome, a rare genetic disorder associated with neural and facial abnormalities. Like human patients born with DiGeorge, mice can carry the identical genetic mutation, providing an ideal model to study where development goes awry at the cellular and molecular level.
Neurologic Dysphagia
Skip to content. Swallowing is complex process involving the coordinated interactions of a network of nerves and muscles, and a number of neurologic conditions can interfere with this process, causing disordered swallowing dysphagia. The muscles of the mouth, back of throat pharynx , and top end of the esophagus upper esophageal sphincter are directly connected to the brain through the cranial nerves, and can be weakened in people with neurologic disorders. When people have difficulty timing the movement of food and liquids from the mouth to the throat and esophagus when they start to swallow, they have a specific form of swallowing disorder called oropharyngeal dysphagia.
Cranial nerve damage occurs when any of the twelve cranial nerves are damaged as a result of injury to the nervous system. Common causes of cranial nerve injury include damage to the brain e. Speech and language therapy is highly beneficial for individuals with cranial nerve damage. Speech and language therapy will provide the individual and others involved in their care with exercises, strategies and advice in helping them to reach their full potential in their communication, eating and drinking.
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