Canadian Medical Guide > Diseases > Nervous System Diseases > Cranial Nerve Diseases > Cranial Nerve Injuries Terms and Definitions
Cranial Nerve Injuries
Medical Definition: | Dysfunction of one or more cranial nerves causally related to a traumatic injury. Penetrating and nonpenetrating CRANIOCEREBRAL TRAUMA; NECK INJURIES; and trauma to the facial region are conditions associated with cranial nerve injuries. |
Guide Notes: | coordinate with specific cranial nerve; gen prefer specifics |
Facial Nerve Injuries - Traumatic injuries to the facial nerve. This may result in FACIAL PARALYSIS, decreased lacrimation and salivation, and loss of taste sensation in the anterior tongue. The nerve may regenerate and reform its original pattern of innervation, or regenerate aberrantly, resulting in inappropriate lacrimation in response to gustatory stimuli (e.g., "crocodile tears") and other syndromes. | |
Optic Nerve Injuries - Injuries to the optic nerve induced by a trauma to the face or head. These may occur with closed or penetrating injuries. Relatively minor compression of the superior aspect of orbit may also result in trauma to the optic nerve. Clinical manifestations may include visual loss, PAPILLEDEMA, and an afferent pupillary defect. |
Cranial Nerve Injuries Medical Definitions and Terms
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