Nose and Nasal Cavity

Frontal, ethmoid, sphenoid, and maxillary

What are the paranasal sinuses?

2 nasal bones, nasal process of frontal bone, and frontal process of maxilla

What makes up the bridge of the nose?

2 lateral cartilages, 2 alar cartilages, and a septal cartilage

What are the cartilages that make up the external nose?

Nares

External openings to the nasal cavity

Nares to choanae

Borders of nasal cavity

Perpendicular plate of ethmoid bone

What makes up the superior nasal septum?

Vomer bone and some inferior contributions from maxilla and palatine bones

What makes up the inferior nasal septum?

hyaline cartilage

The anterior nasal septum is made of...

Superior, middle, and inferior

What are the nasal conchae?

Spheno-ethmoidal recess, superior nasal meatus, middle nasal meatus, and inferior nasal meatus

What are the nasal meatuses?

porous

The mucous membrane of the nasal concha is a ____________ epithelial tissue like erectile tissue that enlarges when filled with blood

enlarged

Normally, the nasal concha on one side of the nose is...

air; drying

When the nasal concha are enlarged, ____________ flow is partially obstructed to prevent the nasal mucosa from __________

Every hour

How often is blood redirected to the other nasal concha?

Spheno-ethmoidal recess

Where is the opening of the sphenoid sinus?

Superior nasal meatus

Where is the opening of the posterior ethmoidal sinuses?

Inferior meatus

Where is the opening of the nasolacrimal duct?

Middle meatus

Where are the openings of the anterior and middle ethmoidal sinuses, maxillary sinus, and frontal sinus?

CN V1

The antero-superior 1/3-1/2 of nasal mucosa is innervated by branches of...

CN V2

The postero-inferior 1/2-2/3 of nasal mucosa is innervated by branches of...