Nose Nasal Cavity And Paranasal Sinuses Flashcards
Give 5 functions of the nose and nasal cavity
Sense of smell Provides route for inspired air Filters air Moistens air Resonating chamber for speech Drains lacrimal and paranasal sinuses
What portion of the maxilla contributes to the bony nose along with the nasal bones?
Frontal process
What nerve carries general sensation from the nasal cavity?
Which branch of this nerve carries sensory to most of it?
Vestibule?
Trigeminal
V2 (posterior-inferior)
V1 (anterior superior)
Give some symptoms of nasal polyps.
What is a red flag?
Common age group?
Blocked nose Watery rhinoohea Post-nasal drip (causing cough) Decreased smell and reduced taste Snoring
Unilateral +/- blood tinged secretion
> 40
Unilateral blocked nose with discharge in child is indicative of what?
Foreign objects
In severe epistaxis what might the surgical treatment be?
Spenopalatine artery ligation
What sinus is most commonly inflamed?
Maxillary
What is the general sensory to frontal, ethmoidal sphenoid and maxillary sinuses?
Frontal ethmoidal and sphenodal Va
Maxillary - Vb
Name some symptoms for acute sinusitis.
Recent URTI Blocked nose Rhinorrhea - green and yellow dishca e Head ache Face pain - worse on leaning forward Pyrexia
Describe Pathophysiology behind acute sinusitis.
Primary infection leads to
- Reduced ciliary function
- Oedema in nasal mucosa and sinus Ostia
- Increased nasal secretions a
Impeding drainage
Stagnation - breeding group
What are the most common bacteria in acute sinusitis.
SP
HI
Moraxella catarrhalis
How would moraxella catarrhalis appear under microscopy?
Gram negative coccus
