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The main cranial nerve that is affected by this viral infection is the Facial Nerve (CN VII). However, other cranial nerves are also affected such as:
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Glossopharyngeal (CN IX), and Vagus (CN X) - for loss of taste
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Glossopharyngeal (CN IX) - for dry mouth
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Oculomotor (CN III) - for the inability to close the right eye
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References:
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Tortora, G. J., & Derrickson, B. H. (2017). Tortora’s Principles of Anatomy & Physiology. Wiley.