WEEK 12 - nose, sinuses and pharynx and pterygopalatine ganglion Flashcards
what is the nose formed by
- nasal bones
- nasal cartilages
- fibrofatty tissue
function of nose
- respiration
- olfaction
- appearance
what is the root of the nose formed by
nasal bone
frontal process of maxilla
nasal process of frontal bone
name the three main cartilages which form the dorsum and apex of the nose
lateral nasal cartilage
major alar cartilage
septal cartilage
list the 8 bones that form the floor, roof and lateral wall of the nose
- nasal
- frontal
- ethmoid
- sphenoid
- maxilla
- lacrimal
- inferior nasal concha
- palatine
what is the nasal septum part formed by
septal cartilage
what is the bony nasal septum formed by
- perpendicular plate of ethmoid bone anterosuperiorly
- vomer posterinferioly
what does the vomer and medial pterygoid plate form
choanae
what does the maxilla and nasal bones form
piriform aperture
what does the vomer, palatine and sphenoid form
choanae
what is the frontal sinus innervated by
supraorbital nerve
what is the ethmoid sinus innervated by
anterior and posterior ethmoid nerves sphenoid
what is the maxillary sinus innervated by
maxillary nerve
what does the sphenoid sinus drains into
sphenoethmoidal recess via its ostium
what does the posterior ethmoid air cells drains into
superior meatus
what does the middle and anterior ethmoid air drains into
middle meatus
what does the maxillary sinus drains into
middle meatus
what does the frontal sinus drains into
middle meatus
where does the nasolacrimal duct drains into
inferior meatus
sensory innervation of the xternal nose
ophthalmic and maxillary nerve