Flashcards in Nose and Paranasal Sinuses Deck (21)
Where in the nasal cavity are the olfactory regions located?
What type of epithelium line the nasal cavity?
Pseudo stratified columnar epithelium
Name the three structures that combine to form the nasal septum?
Perpendicular plate of ethmoid bone
What structure does the olfactory bulb pass through?
What is the main function of the conchae?
Maximise surface area for air conditioning
Name the four paranasal sinuses?
Name the largest paranasal sinus?
Which sinuses drain into the sphenoethmoidal recess?
Which sinuses drain into the superior meatus?
Which sinuses drain into the middle meatus?
Ethmoidal (anterior and middle)
What drains into the inferior meatus?
The nasolacrimal duct
Name the vascular branches from the internal carotid which supplies the nose?
Anterior Ethmoidal artery (branch of the opthalmic artery)
Posterior Ethmoidal artery (branch of the opthalmic artery)
Name the four vascular branches of the external carotid artery which supply the nose?
Sphenopalatine artery (Maxillary branch)
Greater palatine artery (Maxillary branch)
Superior labial artery (Facial branch)
Lateral nasal artery (Facial branch)
Name the region in which epitaxis is most commonly the origin?
Which nerve carries the sensation of smell?
CN I - Olfactory
Which nerve supplies the general innervation to the nose?
V1 - Opthalmic
V2 - Maxillary
Name the branch of V2 which supplies the nasal septum?
Nasopalatine branch of V2
Name the branch of V2 which supplies the lateral nasal wall?
Infraorbital branch of V2
What does the greater palatine branch of V2 supply?
Posterior inferior nose
Name the branch of V2 which supplies the soft palate?
Lesser palatine branch of V2