5 Muscles that were affected
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Buccinator- compresses cheeks into teeth for chewing
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Frontalis- Is responsible for raising of eyebrows and wrinkles forehead
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Orbicularis oris- closes, protrudes and compresses on lips
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Orbicularis oculi- closes the eyelids and assist in pumping the tears from the eye into the nasolacrimal duct system
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Platysma- contribute to producing a myriad of facial expressions
Mechanism of Muscle weakness
Bell’s palsy is a condition that causes sudden weakness in the muscles on one side of the face. The weakness makes half of the face appear to droop.
Other possible symptoms:
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Rapid onset of mild weakness to total paralysis on one side of the face
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Facial droop and difficulty in making facial expressions
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Drooling
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Pain around the jaw or in or behind the ear on the affected side