Respiratory system

Vestibule

Nasal cavity superior to the nares
Vibrissae

hairs that filter coarse particles from inspired air
Olfactory mucosa
- -Lines the superior nasal cavity
- - Contains smell receptors
Respiratory mucosa
- - Lines the balance of the nasal cavity
- -Glands secrete mucus containing lysozyme and defensins to help destroy bacteria
Inspired air is:
- 1)Humidified by the high water content in the nasal cavity
- 2)Warmed by rich plexuses of capillaries
- Ciliated mucosal cells remove contaminated mucus
Superior, medial, and inferior conchae
- -medially from the lateral walls
- -Increase mucosal area
- -Enhance air turbulence and help filter air
Superior, medial, and inferior conchae..

Sensitive mucosa triggers sneezing when stimulated by irritating particles
During inhalation the conchae and nasal mucosa

Filter, heat, and moisten air
During exhalation these structures:

Reclaim heat and moisture

Author

gme0710

108239

Card Set

Respiratory system

Description

Nasal Cavity

Updated

2011-10-12T00:17:26Z

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