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Trigeminal nerve facial nerve

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It emerges from the pons of the brainstem , controls the muscles of facial expression , and functions in the conveyance of taste sensations from the anterior two-thirds of the tongue. The facial nerve also supplies preganglionic parasympathetic fibers to several head and neck ganglia. The facial and intermediate nerves can be collectively referred to as the nervus intermediofacialis. The motor part of the facial nerve arises from the facial nerve nucleus in the pons , while the sensory and parasympathetic parts of the facial nerve arise from the intermediate nerve. From the brain stem, the motor and sensory parts of the facial nerve join together and traverse the posterior cranial fossa before entering the petrous temporal bone via the internal auditory meatus.
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Facial nerve

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The Trigeminal (V) and Facial (VII) Cranial Nerves

Try out PMC Labs and tell us what you think. Learn More. There are close functional and anatomical relationships between cranial nerves V and VII in both their sensory and motor divisions. Sensation on the face is innervated by the trigeminal nerves V as are the muscles of mastication, but the muscles of facial expression are innervated mainly by the facial nerve VII as is the sensation of taste. This article briefly reviews the anatomy of these cranial nerves, disorders of these nerves that are of particular importance to psychiatry, and some considerations for differential diagnosis. Recently, the interaction between the sensory parts of cranial verves V and VII has been illuminated. The close functional and anatomical relationships between cranial nerves V and VII in both their sensory and motor divisions have induced us to discuss them together in this article.
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The Trigeminal (V) and Facial (VII) Cranial Nerves: Head and Face Sensation and Movement

The trigeminal nerve, CN V, is the fifth paired cranial nerve. It is also the largest cranial nerve. In this article, we shall look at the anatomical course of the nerve, and the motor, sensory and parasympathetic functions of its terminal branches. Sensory : The three terminal branches of CN V innervate the skin, mucous membranes and sinuses of the face. Their distribution pattern is similar to the dermatome supply of spinal nerves except there is little overlap in the supply of the divisions.
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Trigeminal neuralgia is a chronic pain condition that affects the trigeminal nerve, which carries sensation from your face to your brain. If you have trigeminal neuralgia, even mild stimulation of your face — such as from brushing your teeth or putting on makeup — may trigger a jolt of excruciating pain. You may initially experience short, mild attacks. But trigeminal neuralgia can progress and cause longer, more-frequent bouts of searing pain. Trigeminal neuralgia affects women more often than men, and it's more likely to occur in people who are older than
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