Bell's Palsy is a paralysis of cranial nerve VII (the facial nerve), resulting in inability to control facial muscles on the affected side. Several conditions can cause a facial paralysis, e.g., tumor, stroke, and disease. However, if no specific cause can be identified, the condition is known as Bell's Palsy. Named after Scottish anatomist Bell, who first described it, Bell's palsy is the most common acute mononeuropathy (disease involving only one nerve), and is the most common cause of facial nerve paralysis....
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