Anatomy 1 + 2 questions Flashcards
how can le fort 2 + 3 #s affect the nose?
disrupt cribiform plate
spread of paranasal sinusistis infection
loss of smell
what nerve is the anterior ethmoidal nerve from and what foramen does it go through
branch of V1
through anterior eth. foramen
what nerve is the nasopalatine from, and what foramen goes it go through?
branch of V2
through sphenopalatine foramen
two branches of ECA that supply the face?
maxillary + facial
what are the branches of the ECA ? (8)
SALFOPMS - some angry lady
superior thyroid ascending pharyngeal lingual facial occipital posterior auricular maxillary superior temporal
2 branches of ophthalmic artery (branch of ICA) that supply the superior nasal cavity?
anterior + posterior ethmoidal arteries
2 branches of maxillary (ECA) artery that supply the inferior-posterior nasal cavity?
sphenopalatine + greater palatine
2 branches of the facial artery (ECA) that supply the anterior nasal cavity?
septal branch (of superior labial artery) + lateral nasal artery
what physiological thing can affect the airflow through the nose?
engorgement of the nasal mucosa = swaps between sides every 1-5 hours
what kind of epithelium lines all the paranasal sinuses?
respirtatory epitherlium
where can sinusitis pain be referred to?
the teeth - via V1 + V2
what sinus is most prone to infection and why?
maxillary - cilia have to upwards against gravity to ostia
what problem can occur with teeth + macxillary sinus?
teeth roots may pierce up into sinus = infection can spread
also if the oro-antral fistula doesn’t close properly
2 nerves + 1 artery + 1 vein going through the IAM?
7 + 8
labyrinthine artery + vein
2 nerves that supply the EAM + external tympanic membrane?
what supplies the internal tympanic membrane?
V3 and CN 10
internal = CN 9
nerves that supply the auricle? (5)
C2 C3 CN V3 CN 7 CN 10
otoscopic examination
how do you straighten the EAM in
> children
> adults
children - pull auricle posterioinferiorly
adults - pull it posterosuperiorly
what does the CN 9 supply?
middle ear eustach tube nasopharynx oropharynx tonsils
2 musles in the middle ear?
stapedius
tensor tympani - off the malleus (V3)
where is the IAM?
in the intracrial cavity - in the posterior cranial fossa
the chorda tympani supplies the anterior 2/3rd tongue taste buds… and what else?
parasympathetic supply tot eh submandibular + sublingual salivary glands
that is the border of the lips called?
Vermillion border
how do you test the muscles of facial exp / motor CN7 ?
4
- frown
- smile
- eyes closed tight
- maintain puffed out cheeks
