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92 Cards in this Set

  • Front
  • Back
Facial Nerve is which cranial nerve
CN VII
Trigeminal nerve is which cranial nerve?
CN V
what are motor nerves to face for?
innervate muscles of facial expression
are sensory and motor nerves to face from same nerves?
No
dermatomal distribution of sensory (cutaneous) nerves to face
ophthalmic nerve, maxillary nerve, mandibular nerve, dorsal rami of cervical spinal nerve, branches of cervical plexus
trigeminal nerves
CN V: V1 - ophthalmic nerve, V2 - maxillary nerve, V3 - mandibular nerve
where do motor nerves to the muscles of facial expression come from?
facial nerve (CN VII)
where does the facial nerve emerge from?
stylo-mastoid foramen
what cranial nerve is the facial nerve?
CN VII
where is the stylo-mastoid foramen located?
under ear, between styloid and mastoid processes of the skull
what does the facial nerve pierce?
parotid gland
what is the facial nerve sandwiched between?
between the superior and deep lobes of the parotid gland
what is parotid gland covered in?
parotid sheath (fascia)
what may happen if a tumor is in the parotid gland?
tumor, especially in deep lobe of parotid gland may stretch the facial nerve, resulting in loss of muscle tone in the muscles of the face
what percent of salivary gland tumors are in the parotid?
80%
where do most salivary gland cancers begin?
parotid gland
what is a parotidectomy?
surgical excision of the parotid gland
what is in danger during a parotidectomy?
facial nerve - CN VII
what gland makes a significant contribution to the contours of the face?
parotid gland
how many major branches of the facial nerve are there?
7
mnemonic for branches of facial nerve
Two Zebras Bit My Cat's Precious Nose
branches of facial nerve
temporal branches, zygomatic branches, buccal branches, marginal mandibular branch, cervical branch, posterior auricular nerve, nerve to stylohyoid muscle and posterior belly of digastric muscle
temporal branches of facial nerve go to
frontalis muscle, orbicularis oculi muscle, auricularis anterior muscle
zygomatic branches of facial nerve go to
zygomatic and nasal muscles
buccal branches of facial nerve go to
muscles around mouth
marginal mandibular branch of facial nerve goes to
depressor muscles of mouth
cervical branch of facial nerve goes to
platysma muscle
nerve to stylohyoid and posterior belly of digastric muscles are located here
submandibular triangle of neck
location of parotid duct
on a line from tragus of external ear, runs along masseter muscle
location of zygomatic branches of facial nerve
superior to parotid duct
location of buccal branches of facial nerve
inferior to parotid duct
where does the parotid duct dive deep?
anterior border of the masseter muscle
where does the parotid duct open into the mouth?
at the level of the upper 2nd molar tooth
facial artery and vein become
angular artery and vein
path of facial artery and vein
wiggle along jaw and then up toward eye
facial vein connects with
cavernous sinus and pterygoid plexus
facial vein connects to cavernous sinus via
superior ophthalmic vein
cavernous sinus is located in
dura mater
pterygoid plexus is located in
infratemporal fossa
facial vein connects to pterygoid plexus via
inferior ophthalmic and deep facial veins
infection of face may spread to
cavernous sinus and pterygoid plexus
does the facial vein have valves?
NO
thrombophlebitis from facial vein can go to
cavernous sinus (thrombophlebitis of cavernous sinus)
thrombophlebitis
infected blood clot
danger triangle of face
upper lip to bridge of nose
squeezing pimples in danger triangle is dangerous because
can spread infection to cavernous sinus
transverse facial artery is a branch of
superficial temporal artery
location of transverse facial artery
just superior and parallel to parotid duct
external jugular vein is formed by
retromandibular vein and posterior auricular vein
what covers the infratemporal fossa?
zygomatic arch and ramus of mandible
What are the 4 muscles of mastication?
temporal, masseter, lateral pterygoid, medial pterygoid
mastication
chewing
what innervates the 4 muscles of mastication?
mandibular branch (V3) of the trigeminal nerve (CN V)
parts of mandible
body, angle, ramus
what kind of joint is the temporomandibular joint?
synovial joint
what is the temporomandibular joint at risk of getting?
arthritis like all synovial joints
articular disc
separates superior and inferior synovial cavities of TMJ
where is TMJ?
connection between mandible and skull
what are the three ligaments that hold the mandible to base of skull?
sphenomandibular, stylomandibular, lateral (temporomandibular) ligaments
major artery of infratemporal fossa
maxillary artery
what does the maxillary artery branch off of?
external carotid artery
maxillary artery divided into 3 parts by?
lateral pterygoid muscle
what are the 3 parts of the maxillary artery and how many branches in each part?
mandibular (5), pterygoid (6), pterygopalatine (6); 5-6-6 Rule
what are the 5 branches of the mandibular part of the maxillary artery?
deep auricular artery, anterior tympanic artery, inferior alveolar artery, middle meningeal artery, accessory meningeal artery
where do the branches of the mandibular part of the maxillary artery go?
through the bone
mnemonic for branches of mandibular part of maxillary artery
My Dumb Ass Is My Ass
what are the 6 branches of pterygoid part of the maxillary artery?
masseteric, posterior temporal, medial pterygoid, lateral pterygoid, anterior temporal, buccal
what do the branches of the pterygoid part of the maxillary artery go to?
to the muscles
mnemonic for the branches of the pterygoid part of the maxillary artery
Potty Mouthed Prime Minister's Lies Are Bad
what are the 6 branches of the pterygopalatine part of the maxillary artery?
Descending Palatine, Posterior Superior Alveolar, Infraorbital, Artery of pterygoid canal, Pharyngeal, Sphenopalatine
where do the branches of the pterygopalatine part of the maxillary artery go to?
through the bone
mnemonic for the branches of the pterygopalatine part of the maxillary artery
Peter Piper Did Pam Shriver In A Pontiac Sunfire
Deep auricular artery serves
external acoutic meatus
pharyngeal artery serves
goes through pharyngeal canal to roof of pharynx
sphenopalatine artery serves
goes through sphenopalatine foramen to the nasal cavity; terminal branch of maxillary artery
deep auricular artery
goes to the external acoustic meatus
anterior tympanic artery
goes to tympanic membrane (ear drum) via slit called petro-tympanic fissure
inferior alveolar artery
descends to the mandible and enters the mandibular foramen on its way to the mandibular teeth
middle meningeal artery
goes through the foramen spinosum on its way to the dura mater inside the skull
accessory meningeal artery
goes through the foramen ovale on its way to the cranial cavity
masseteric artery
goes to the deep surface of the masseter muscle
posterior temporal artery
goes to the temporalis muscle
medial pterygoid artery
goes to the medial pterygoid muscle
lateral pterygoid artery
goes to the lateral pterygoid muscle
anterior temporal artery
goes to the temporalis muscle
buccal artery
goes to buccinator muscle
descending palatine artery
goes through pterygopalatine canal to roof of mouth
posterior superior alveolar artery
goes through alveolar foramena to supply maxillary molar and premolar teeth
infraorbital artery
goes through inferior orbital fissure to various anastamoses
artery to pterygoid canal
goes through vidian canal to the eustachian tube
major vein of infratemporal fossa
pterygoid plexus of veins surrounding maxillary artery
major nerve of infratemporal fossa
mandibular nerve