Anatomy Flashcards
point to the root, dorm, tip, ala, nostril, septum of nose and philtre of upper lip
x
should you use adrenaline containing anaesthetics near the nasal cartilages?
naaaah
what bone is particularly important in the nasal cavity
ethmoid bone
what is the top of the ethmoid called
cribriform plate and crista galli
what is the lateral wall of the ethmoid bone called
superior and middle conchae, ethmoid air cells and orbital plate
what makes up the septal plate
perpendicular plate of the ethmoid and vomer
what is le fort fracture 1
along maxilla
what is le fort 2
nasal bone, maxilla
le fort three
includes temporal, sphenoid, maxilla and nasal
can le fort fractures 1,2,3 cause spread of infection
no- only 2 and 3 can
why is a septal haematoma incised and drained?
prevents AVN of septal hyaline cartilage which relies in nutrients from nasal mucosa
What kind of mucosa would you find in the vestibule of the nasal cavity
keratinised stratified squamous epithelium
what is the largest mucosa of the nasal cavity
respiratory- pseudostratified, columnar with cilia and goblet cells
what mucosa makes up the nasal cavity next to the sphenoid
olfactory mucosa
what is the olfactory nerve
special sensory
What nerve supplies the superior half of the nasal cavity
V1- opthalmic
what nerve supplies the posterior part of nasal cavity
V2- maxillary
what blood supply arises from external carotid artery
facial and maxillary
what blood supply arises from internal carotid arteries
opthalmic
what are branches of the ophthalmic artery
anterior and posterior ethmoidal arteries
what are branches of the maxillary artery
sphenopalatine and greater palatine arteries
what arises form the facial artery
lateral nasal branch of facial or septal branch of superior labial artery depending on how you look at it
what is important about kiesselbachs area?
an arterial anastomosis on nasal septum- common cause of nosebleeds
what are the spaces below each conchae called (4)
meatus- sphenoethmoidal, superior, middle, inferior