Bell’s palsy
Bell's palsy is a form of temporary facial paralysis resulting from damage or trauma to the facial nerves. The facial nerve-also called the 7th cranial nerve-travels through a narrow, bony canal (called the Fallopian canal) in the skull, beneath the ear, to the muscles on each side of the face. For most of its journey, the nerve is encased in this bony shell.Each facial nerve directs the muscles on one side of the face, including those that control eye blinking and closing, and facial expressions such as smiling and frowning. Additionally, the facial nerve carries nerve impulses to the lacrimal or tear glands, the saliva glands, and the muscles of a small bone in the middle of the ear .called the stapes. The facial nerve also transmits taste sensations from the tongue When Bell's palsy occurs, the function of the facial nerve is disrupted, causing an interruption in the messages the brain sends to the facial muscles. This interruption results in facial weakness or paralysis
Other
Bell's palsy or idiopathic facial paralysis is the most common cause of unilateral facial paralysis. it has specific and important symptoms. it causes is unknown but may be associated with other diseases. This report will discuss the possible causes, symptoms, diagnosis, and the treatment of Bell's palsy
