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
del
del
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
which structures pass into the parotid salivary gland?
- facial nerve (VII)
- external carotid artery
- retromandibular vein
innervation of parotid salivary gland?
- parasympathetic > glossopharyngeal nerve (IX)
- sympathetic > superior cervical ganglion
label the nerve branches that innervate the face, scalp and neck
which bone does the facial artery wind around to reach the face?
body of mandible
which muscle on the side of the face lies immediately posterior to the facial artery as it enters onto the face?
masseter muscle
just before the facial artery enters onto the sdie of the face, which gland does it groove?
submandibular gland
where does the facial artery end?
angular artery
which major vein in the neck do the facial vein and superficial temporal veins drain into?
internal jugular vein