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What type of nerve is the facial nerve (cranial nerve VII)?
The facial nerve is both sensory and motor.
What are the primary functions of the facial nerve?
Facial expressions, taste from the anterior two-thirds of the tongue, and gland functions.
What gland is responsible for tear production and moisture of the eye?
Lacrimal gland.
Which glands are involved in saliva secretion?
Sublingual and submandibular glands.
What is assessed to determine the function of the facial nerve?
Facial symmetry and various facial movements.
What are the different branches of the facial nerve?
Temporal, zygomatic, buccal, mandibular, and cervical branches.
What muscle is associated with the temporal branch of the facial nerve?
Frontalis muscle.
What muscle does the zygomatic branch interact with?
Orbicularis oculi muscle.
What functions do the zygomaticus minor and major muscles perform?
They help pull up the lip and create a smile.
What is the role of the cervial branch of the facial nerve?
It innervates the platysma muscle, which allows for frowning.
What is a primary symptom of Bell's palsy?
Rapid onset facial weakness and asymmetry.
What is Ramsay Hunt syndrome associated with?
A flare-up of the varicella zoster virus causing facial weakness and ear pain.
What should be ruled out when assessing for facial nerve issues?
Stroke.
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