Nose And Paranasal Sinuses Flashcards
What epithelium is the nose
Pseudostratified epithelium and cilia
What are the 3 different major cartilages of the nose
Septal
Lateral nasal
Major alar
What are the 3 major arteries to the nose
Ophthalmic
Maxillary
Facial
These vessels are derived from the external and internal carotid arteries
Where does general sensory supply to the nose arise from
Branches of the ophthalmic (nasociliary) and maxillary (nasopalatine) divisions of the trigeminal nerve
Where does special sensory supply to the nose come from
Olfactory nerve
What are the 3 regions of each nasal cavity
Vestibule
Respiratory
Olfactory
What is the vestibule of the nose
Located within the nares lined by skin and houses hair follicles
Where is the nasal conchae and meatuses contained
In the large respiratory region
Where do the paranasal sinuses and nasolacrimal duct drain
Into the lateral walls of the nasal cavity
What does the sphenopalatine foramen do
Connects the nasal cavity to the pterygopalatine fossa
What does the superior concha drain
Sphenoid sinus
Posterior ethmoid sinus
What does the middle concha drain
Anterior ethmoidal sinus
Middle ethmoidal sinus
Maxillary sinus
Frontal sinus
What does the inferior concha drain
Nasolacrimal duct
What is the paranasal sinuses
Large cavities enclosed in skull bones and covered by mucus and cilia connected to the nasal cavity through passages and apertures called Ostia
What is the paranasal sinuses function
Speech and voice resonance
Reducing weight to skull
Air warming and filtration
Mucus production and storage
Production of nitric oxide
