Wicky Wicky Whaaaat??? Flashcards
External Auditory Meatus house what
facial n branches, middle N
When nodding the occipital condyles articulate with?
the cervical vertebrae
Sphenoid unites what?
cranial and facial bones
-contains sphenoid sinuses (can have infections here)
What parts of the brain sit in the anterior cranial fossa? middle posterior?
- frontal
- temporal
- cerebellum
What do the vomer ala do?
articulate with sphenoid
What happens when we get a non-fusion of the palatine bone or it extends through the maxilla?
cleft lip or cleft palate
Where do you break for Le Fort 1? 2? 3?
- teeth from upper face; through alveolar ridge, lateral nose, and inferior wall of max sinus
- teeth as base; posterior alveolar ridge, lateral walls of max sinus, inferior orbital rim, and nasal bones
- through nasofrontal suture, maxilla frontal suture, orbital wall, and zygomatic arch
Bones of orbit. Bones of Nasal Complex.
- S, L, Z, M, E, P, F
2. MEN LIPS
Where them sinuses at?
Frontal up top on either eyebrow
Ethmoidal on side of noses more anterior
Sphenoid on side of nose more posterior
Maxillary on side of noses like on the cheek
What muscle makes up the aponeurosis of the scalp?
occipital frontalis m.
What goes through the parotid gland you gotta be careful for during surgery?
Facial N., Retromandibular V, External Carotid A.
What areas/what do the following drain?
a. Submental
b. Submandibular
c. Parotid
d. Mastoid
e. Occipital
f. Jugulo-digastric
g. Jugulo-omohyoid
a. chin + central lower lip
b. upper lip + lateral part of lower lip
c. lateral forehead/face/eyes
d. sides and posterior ear
e. back of head
f. superior deep cervicals
g. inferior deep cervicals
What are the openings for the Pterygopalatine Fossa?
- Inferior Orbital Meatus - Infraorbital N.
- Pterygopalatine Fissure
- Sphenopalatine Foramen - Sphenopalatine A.
- Foramen Rotundum - V2
- Pharyngeal Canal
- Vidian Canal - Vidian N.
- Pterygopalatine Canal - Palatine N.
What causes auricular hematoma?
trauma causes hemorrhages bt the perichondrium and cartilage
Myringotomy
placement of tube in ear
*tympanostomy are the tubes
Where are hair cells embedded?
tectorial membrane
where do things go with an orbital blow out?
maxillary sinus (usually are inferior and medial)
What do the short ciliary do? long? anterior and posterior ethmoidal?
a. afferent fibers that go to the cornea, and have para for the iris and ciliary body
b. contain sensory fibers, and some symptoms to supply cornea (!!!)
c. mucosal part of nasal cavity
What nerves don’t go through tendon ring?
frontal, trochlear, lacrimal
Fook That L
Where do subconjunctival hemorrhages happen?
below bulbar layer and sclera
Blockage of Schlemm’s Canal can cause what?
increased pressure and glaucoma
*aka sclera venous sinus
What is the route of aqueous humor?
ciliary process –> post chamber –> anterior chamber –> sclera venous sinus
*if blocked increased pressure and glaucoma
What is hyphema?
rupture of BVs in anterior chamber
Clinical significance of Emissary V
it drains the scalp into the superior sagittal sinus, so infections on the scalp can spread there (ex. meningitis)
How does CSF get into the venous sinuses?
arachnoid villus
Inferior petrosal sinus
helps drains cavernous sinus; exits anterior part of jugular foramen
How is the facial v connected to the plexuses?
cavernous sinus - superior opthalmic
pterygoid - deep facial
Pterygoid Plexus clinical significance
it acts as a peripheral pump so by yawning/opening your mouth it sends blood through maxillary
Relationship of Lingual N and A to CN 12
N is over it, and A is under it
*A feeds sublingual gland and oral floor with sublingual branch; base of tongue with deep
Vertebrobasilar Insufficiency
due to not enough blood getting to brain bc of Vertebral a. occlusion/quick motion
- symptoms: syncope, vertigo, double vision, nausea, vomitting…
- risks: smoking, HT, HVLA, diabetes, FH
- treatment is lifestyle mods and medications
Circle of Willis
posterior communicating branch, middle cerebral a, anterior communicating branch, Internal carotid a
Subclavian Steal Syndrome
-occlusion in subclavian, so vertebral a gives blood to UE and less for brain
What do the uvula and soft palate do during swallowing
elevate to close nasopharynx
*water in nose: it didn’t work q
what does the sublingual gland make
more mucous substance; activated by sympathetics
Where are the nasopharynx, oropharynx, layrngopharynx?
- space above soft palate
- space below soft palate above epilottis
- space below epiglottis
Levator Veli Palatini; Tensor Veli Palatini
- elevates palate; CN X
- tenses palate; CN V, V3
*paralysis of either/both can lead to reflux f oral contents into nasal cavity, and pharyngotympanic tube dysfunction
M. that equalize pressure in ears
- Levator Veli Palatini
- Tensor Veli Palatini
- Superior Pharyngeal Constrictor
*like in popping ears on plane
