Nasal Cavity and Paranasal Sinuses Flashcards Preview

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Flashcards in Nasal Cavity and Paranasal Sinuses Deck (36):
1

anterior portion of the nasal cavity

Nasal vestibule

2

Posterior portion of the nasal cavity

Choanae

3

Divides the nasal cavities

septum

4

Floor of the nasal cavity

Palatine process of the maxilla and horizonal plate of the palatine bone

5

Roof of the nasal cavity

Cribriform plate (middle), nasal spine (anterior), nasal bone (anterior), body of sphenoid bone (posterior)

6

Medial wall of nasal cavity

Perpendicular plate of ethmoid (superior), vomer (posterior), nasal crests of maxilla/palatine bones, nasal spine, vomeronasal cartilage (anterior)

7

Lateral wall of nasal cavity

Inferior/middle/superior turbinates

8

What bone are the middle and superior turbinates part of?

Ethmoid

9

What is a turbinate called when covered in mucosa?

Conchae

10

Elevated portion of the lateral wall that surrounds/separates each conchae

Meatus

11

Space between the superior conchae and the lateral wall

Sphenoethmoidal recess

12

What does the inferior meatus contain?

nasolacrimal duct (anterior portion)

13

What does the middle meatus contain?

Middle ethmoidal air cells (make up ethmoidal bulla), semilunar hiatus, frontal sinus drainage, maxillary sinus

14

What does the superior meatus contain?

Posterior ethmoidal air cells,sphenopalatine foramen

15

What opens into the sphenoethmoidal recess?

Sphenoid sinus

16

Contents of sphenopalatine foramen

Nasopalatine nerve, posterior superior lateral nasal nerve, sphenopalatine artery/vein

17

Contents of incisive canal

Nasopalatine nerve, greater palatine artery

18

Contents of cribriform plate

Filaments of olfactory nerve, posterior ethmoidal artery, posterior ethmoidal nerve

19

Contents of nasal slit

Anterior ethmoidal artery/vein/nerve

20

Contents of foramen cecum

Superior sagittal sinus (frequently absent)

21

Contents of palatine canal

Posterior inferior lateral nasal nerves (off of greater palatine via V2)

22

Bones that contribute to the superior/external nose

nasal bones, frontal process of maxillae, nasal portion of the frontal bone

23

Branches to nasal area via ECA

Sphenopalatine artery, greater palatine artery, superior labial artery, lateral nasal artery

24

Branches off of sphenopalatine artery

Posterior lateral nasal branch, posterior septal branch

25

Branches off of ICA to the nasal area

Posterior/anterior ethmoidal artery

26

Anastomose of nasal arteries in the anterior portion of the septal wall

Kiesselbach's area

27

Branches of V2 that innervate the nasal cavity

Nasopalatine nerve, superior lateral nasal nerve, inferior lateral nasal nerve

28

Branches of V1 that innervate the nasal cavity

Posterior ethmoidal nerve, anterior ethmoidal nerve (turns into the internal nasal nerve as it runs over the anterior septum)

29

Branches of V2 that innervate external nose

Infratrochlear nerve, external nasal branch of anterior ethmoidal nerve

30

Branch of V1 that innervates the external nose

Nasal branches of infraorbital nerve

31

Yellowish, quarter-size patch of sensory epithelium situated near the middle of the roof of the nasal cavity

Olfactory epithelium

32

Innervates the autonomics of the frontal nerve

Supraorbital nerve via frontal of V1

33

Innervates the autonomics of the ethmoidal air cells

Orbital branches via pterygopalatine ganglion

34

Opening of the duct in the maxillary sinus

Maxillary ostium

35

Innervates the mucosa of the maxillary sinus

Superior alveolar nerve

36

Most common site for sinusitis

Maxillary sinus