Anatomy and Pathophysiology of the Throat, Nose, Sinuses, and Middle Ear Flashcards
Which structures in the nasal cavity slow air flow?
a) turbinates
b) epithelium
c) septum
d) nose hair
a) turbinates
What size of particles does the nose hair filter out?
> 30mm
Which vascularized tissue connects the mucosal layer to the periosteum (bone)
connective tissue
Nasal mucosa serves a _________ function against environmental exposure
protective function
Stimulating the parasympathetic system causes increases or decreases mucous production?
increases mucous production (vasodilation)
When stimulating the sympathetic system, nasal congestion or decongestion occurs? Vasodilation or vasoconstriction?
nasal congestion occurs, and by vasoconstriction
What nerve does the nasal mucosa innervate?
trigeminal nerve
Which nerve innervates for sense of smell?
olfactory nerve
What three cells is ciliary epithelium made of?
- Ciliated columnar epithelial cells –> remove particulate to nasopharynx
- Goblet cells –> produce mucin
- Basal cells –> attach mucous epithelium submucosal tissues
Which receptors mediate increased mucous production? a) M2 b) M3 c) M1 D) M4
b) M3 receptors
Which receptors inhibit mucous production? a) M2 b) M3 c) M1 D) M4
a) M2 by blocking acetylcholine release
Which cells are associated with release of histamine and inflammatory mediators from an allergen
mast cells and basophils
What nerve mediates pruritis and sneezing?
a) facial nerve
b) abducens
c) hypoglossal
d) trigeminal
d) trigeminal
Which receptors lead to vasoconstriction that attenuates hyperemia
a) a1 + a2
b) b1 + b2
c) a1 + b1
d) a2 + b1
a) a1 + a2
What releases when H3 receptor is activated during nasal stuffiness?
a) epinephrine
b) norepinephrine
c) noradrenaline
d) adrenaline
c) noradrenaline
condition that describes inflammation of the nose and sinuses
rhinosinusitis (sinusitis)
How long does acute rhinsosinusitis last for?
a) < 2 weeks
b) <3 weeks
c) <4 weeks
d) <6 weeks
c) < 4 weeks