Nasal Cavity Flashcards Preview

Anatomy Written 2 > Nasal Cavity > Flashcards

Flashcards in Nasal Cavity Deck (13):
1

External Nares

Mainly cartilaginous
Nares - nostrils
Alae (wings)
Enter into vestibule
Vibrissae (stiff hairs)

2

Nasal Cavity Skeleton - Floor

Floor = hard palate, maxillae and palatine

3

Nasal Cavity Skeleton - Roof

Frontonasal, Ethmoid, Sphenoid

4

Nasal Cavity Skeleton - Medial Wall

Nasal Septum
- Bone (Vomer and Perpendicular plate of Ethmoid)
- Cartilage

5

Nasal Cavity Skeleton - Lateral Wall

Superior, Middle (ethmoid) and Inferior Concha

6

Spaces associated with Concha -->

Recess or meatus

7

Sphenoethmoidal Recess

Superior to superior nasal concha
Opening of sphenoid air sinus

8

Superior, Middle and Inferior Meatus

Space inferior to the "same named" concha

9

Superior Meatus

Opening of posterior ethmoid air cells

10

Middle Meatus

Hiatus Semilunaris
Openings for Anterior and Middle ethmoid air cells
Openings for Frontal and MAxillary air sinuses

11

Inferior Meatus

Nasolacrimal duct

12

Nerve Supply of nasal cavity

CN 1 - Olfactory
General Sensation - V1 ophthalmic superiorly and V2 maxillary laterally and inferiorly

13

Arterial Supply of nasal cavity

Sphenopalatine - branch of third part of maxillary artery
Facial - superior labial branch
Greater Palatine from descending palatine - branch of third part of maxillary
Epistaxis - nosebleed - most likley occurs at anastomoses of the vessels