9 Questions
What are the functions of the nose?
Smell, humidification, respiration, and filtration
Which nerve supplies the external nose?
CNV1 (Trigeminal Nerve, Ophthalmic Branch)
What divides the nasal chamber into two nasal cavities?
Nasal septum
What forms the Kiesselbach plexus in the nose?
Vascular supply
What is the function of paranasal sinuses?
Lighten the weight of the skull
Where is the olfactory epithelium located?
On the roof of the nasal cavity
Through which bone do the olfactory nerves exit?
Cribriform plate of the ethmoid bone
What is the final portion responsible for the sense of smell?
Olfactory tract
What is the main function of the nasal conchae (turbinates)?
Increase surface area for cleansing, humidification, and temperature control of inspired air
Study Notes
Functions of the Nose
- The primary function of the nose is to warm, humidify, and filter the air we breathe
External Nose Supply
- The external nose is supplied by the trigeminal nerve
Nasal Chamber Division
- The nasal septum divides the nasal chamber into two nasal cavities
Kiesselbach Plexus
- The Kiesselbach plexus in the nose is formed by the convergence of the sphenopalatine artery and the greater palatine artery
Paranasal Sinuses Function
- The function of paranasal sinuses is to produce mucus, regulate air pressure, and add resonance to the voice
Olfactory Epithelium Location
- The olfactory epithelium is located in the roof of the nasal cavity and in the superior concha
Olfactory Nerve Exit
- The olfactory nerves exit through the cribriform plate of the ethmoid bone
Sense of Smell
- The final portion responsible for the sense of smell is the olfactory bulb
Nasal Conchae (Turbinates) Function
- The main function of the nasal conchae (turbinates) is to warm, humidify, and filter the air we breathe
Test your knowledge of the anatomy and functions of the nose with this quiz. Explore topics such as the external nose, nasal cavity, and nerve supply, and gain a deeper understanding of the role of the nose in smell, respiration, and filtration.
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