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How does a facial nerve palsy caused by a lower motor neuron lesion present?

A) Ipsilateral facial weakness, loss of forehead wrinkles, and drooping mouth
B) Contralateral facial weakness with forehead sparing
C) Bilateral facial weakness and tongue deviation
D) Absence of facial weakness

Answer :

Final answer:

A facial nerve palsy caused by a lower motor neuron (LMN) lesion typically presents with ipsilateral facial weakness, loss of forehead wrinkles, and drooping of the mouth.

Explanation:

A facial nerve palsy caused by a lower motor neuron (LMN) lesion typically presents with ipsilateral facial weakness, loss of forehead wrinkles, and drooping of the mouth. This means that the side of the face affected by the lesion will exhibit weakness, the forehead will not show any wrinkles when the person raises their eyebrows, and the mouth will droop on that side.

It is important to note that if there is absence of facial weakness, a lower motor neuron lesion is unlikely to be the cause.

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