What is the nerve facialis?

nervus facialis, more often known as the facial nerve, is one of the skulls. There are completely 12 pairs of cranial nerves that come from the brain and come across the holes in the skull to supply the head and neck. The nerve facialis is the seventh cranial nerve and consists of two roots that have both engine branches and sensory branches. While the motor nerve gives the muscles of the facial expression and a small stappedius bone of the ear, the sensory branch adds to the areas of tongue, mouth and palate. Some fibers innervate salivary glands, tear glands and other glands on the first floor and nose.

After passing from the brain strain through the inner ear, the nerve facialis emerges just below the last. It rides in a point gland where they are divided into a number of branches. While the nerve facialis adds all the muscles involved in the facial expression, it does not provide any of the facial skin. The taste of tests for the tongue of the tongue supplied nerve facialis can be used to assess whether the nerve works.

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area of ​​the face nerves occurs when nerve damage facialis affects the face muscles and causes the face to fall on one side. As the muscles that close the eye can remain open, maybe damage the surface of the eyeball over time. Muscle paralysis can be partial and mainly affects the lower face or larger, which affects the ability to eat and speak. The loss of taste and exaggerated perception of loud or high sounds may also be involved.

, depending on where nervus facialis is damaged on its way, may be described as an upper motor neuron or a lower motor neuron in nature. With a lower engine neuron, also called Bell's Palsy, it is a sign that the patient is unable to produce his forehead. Causes may include infectious Herpes and Lyme disease, tumors, head blows and neurological diseases such as multiple sclerosis. Sometimes the cause is unknown and fortunately the condition in many cases will be resolved by reindeerE. Meanwhile, the eye may be lubricated with drops and protected by patch.

Usually, in the case of upper motor neuron, the patient retains the ability to suppress the forehead and show less face drop. Strokes, tumors, multiple sclerosis and infections such as syphilis and HIV can cause palsy with upper motor neuron. Usually in the case of stroke, voluntary facial movements are most influenced. Treatment varies depending on the cause, but sometimes the operation can be used to repair the nerve of the face.