The Face Flashcards
what is muscle A and what is its function?
- Orbicularis oculi (palpebral part)
- gentle eyelid closing
what is muscle B and what is its function?
- occipital belly of occipitofrontalis
- retracts scalp
what is muscle C and what is its function?
- orbicularis oculi (orbital part)
- tight eyelid closing
what is muscle D and what is its function?
- frontal belly of occipitofrontalis
- elevates eyebrows
what is muscle E and what is its function?
- buccinator
- presses cheek against molar teeth
what is muscle F and what is its function?
- platysma
- depresses mandible
what is muscle G and what is its function?
- orbicularis oris
- closes the lips to narrow the oral opening
which nerve innervates all the muscles of facial expression?
- facial nerve (CN VII) via its terminal branches.
as it leaves the cranial cavity, from which foramen does the facial nerve emerge onto the side of the face?
stylomastoid foramen
where does the facial nerve split into its terminal branches?
after it enters the parotid gland
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label this
what type of gland is the parotid gland?
exocrine
what is the course of the parotid duct?
the parotid duct runs forward from the gland, superficial to the masseter muscle and then pierces the buccinator muscle to open into the oral cavity.
where does the parotid duct open into the oral cavity?
opposite the upper second molar