Nasal Cavity & Nasopharynx Flashcards Preview

Jason's Neuro Block > Nasal Cavity & Nasopharynx > Flashcards

Flashcards in Nasal Cavity & Nasopharynx Deck (28):
1

3 areas of cartilage of the nose are?

1. lateral cartilage
2. septal cartilage
3. alar cartilages

2

bridge of the nose is made of?

nasal bones

3

what allows air to move between nostrils?

posterior nare, rest is blocked by septal cartilage

4

medial wall of the nasal cavity is made from 3 major structures:

1. septal cartilage
2. cribiform plate of ethmoid
3. vomer

5

3 consequences of severe nose breaks:

Ethmoid bone involvment
1. infection
2. bleeds into brain
3. rhinorrhea: CSF into nasal cavity

6

medial wall covered by what? why?

highly vascular mucous membrane for warming/humidifying

7

describe the vestibule of nostril

not mucosa or highly vascularized
skin and hair

8

histologically, what kind of cells are the nasal cavity made of?

ciliated pseudostratified columnar epithelial cells

9

lateral wall of nasal cavity features?

superior concha
middle concha
inferior concha

10

what do the concha do in the nose?

create turbulence for inhaled air to warm and humidify

11

name the 3 meatus in the nasal cavity, that do they do?

superior
middle
inferior meatus
communicate with sinuses

12

which sinuses innervated by V1?

ethmoid
frontal
sphenoid

13

which sinuses innervated by V2?

maxillary sinus

14

why is infection more likely in maxillary sinuses?

drainage is superior rather than inferior like the other sinuses inferior

15

what can you get with sinusitis?

referred pain to cutaneous nerves

16

tears drain how?

through nasolacrimal duct out the orifice in the inferior meatus of nasal cavity

17

nasal cavity blood supply: posterior lateral and medial walls

sphenopalatine artery

18

nasal cavity blood supply: anterior lateral and medial walls

lateral nasal branches of facial artery
superior labial arteries

19

nasal cavity blood supply: inferior lateral and medial walls

greater palatine artery

20

nasal cavity blood supply: superior lateral and medial walls

anterior and posterior ethmoidal arteries

21

which nasal cavity artery bleed profusely if damaged? why?

sphenopalatine artery because branch of external carotid

22

nerve supply to nasal cavity:

superior: V1, nasociliary
inferior: V2, greater/lesser palatine nerves

23

what ganglion is in the nasal cavity?

pterygopalatine ganglion

24

PHarynx starts and ends where?

starts base of skull
ends at C6 cricoid cartilage

25

3 parts of the pharynx are?

Nasopharynx
Oropharynx
Laryngopharynx

26

what are the 3 constrictor muscles of the pharynx? purpose?

3 slings that attach via median raphe to help with swallowing
1. superior constrictor muscle
2. middle constrictor muscle
3. inferior constrictor muscle

27

what muscle to equalize pressure in auditory tube?

salpingopharyngeal muscle

28

what can swell and block nasopharynx?

pharyngeal tonsil/adenoids