Anatomy & Histology · single question
The facial nerve exits the skull through which foramen, and which muscles are affected in Bell's palsy?
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Correct answer: B. Stylomastoid foramen; orbicularis oculi, orbicularis oris, buccinator
CN VII exits via the stylomastoid foramen and supplies all muscles of facial expression — including orbicularis oculi (eye closure), orbicularis oris (lip seal), buccinator (cheek), frontalis, platysma, and the posterior belly of digastric/stylohyoid. It also carries parasympathetic fibers to the lacrimal, submandibular, and sublingual glands, and taste from the anterior 2/3 of the tongue via chorda tympani.14. Endodontics — Advanced Cases
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