T2Q4 Nasal Cavity Highlights

Question 1

7 structures drain into the nasal cavity. Which do NOT drain into the middle meatus

Answer 1

1. nasolacrimal duct (inferior meatus)
2. posterior ethmoid air cells (superior nasal meatus
3. sphenoid sinus (sphenoethmoid sinus)

Question 2

arteries: posterior nose

Answer 2

maxillary artery:

1. sphenopalatine artery
2. greater palatine artery

Question 3

arteries: anterior nose

Answer 3

opthalmic artery: anterior and posterior ethmoidal branches

Question 4

arteries: major suppliers of nose

Answer 4

1. ophthalmic (internal cartoid)

2. maxillary (external carotid)

Question 5

innervation: anterior nose

Answer 5

ophthalmic nerve (V1)> nasociliary> anterior ethmoid

Question 6

innervation: posterior

Answer 6

maxillary nerve branches via sphenopalatine foramen and greater palatine nerve

Question 7

Rx: Kisselbach’s Area

Answer 7

region in the anterior inferior part of nasal septum prone to nose bleeds

Question 8

Rx: ethmoid venous drainage

Answer 8

into the cavernous sinus