Nasal Cavity and Pterygopalatine fossa Flashcards
What cartilages make up the external nose?
2 Lateral nasal cartilages, 2 alar cartilages and the septal cartilage in the nasal septum
What bones make up the external nose?
Frontal bone, nasal bones, frontal processes of the maxilla bones, and bony part of nasal septum
What is the one thing within the nasal cavity that is not lined with nasal mucosa?
Vestibule
The olfactory area has a specialized nasal mucosa that contains what?
Peripheral nerve endings for CN I
What are the 4 nasal passages?
Sphenoethmoid recess, superior nasal meatus, middle nasal meatus, inferior nasal meatus
What is another word for meatus?
Turbinate
What drains into the sphenoethmoid recess?
Sphenoid sinus
What drains into the superior nasal meatus?
Ethmoid sinus
What drains into the middle nasal meatus?
Frontal sinus and the maxillary sinus
What drains into the inferior nasal meatus?
Nasolacrimal duct
What are the 5 main arteries supplying the nasals cavity?
Anterior and posterior ethmoidal, sphenopalatine, lateral nasal, superior labial
What are the 3 main arteries that give off the branches to supply the nose?
Opthalmic, maxillary, facial
What is the area where the 5 main arteries come together within the nasal cavity?
Kiesselbach area
What is important about kiesselbach area?
Site of profuse bleeding
What is the venous drainage of the nasal cavity?
Opthalmic, sphenopalatine and facial veins