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Functions of respiratory system
A. Gas exchange – intake of O2,
elimination of CO2
B. Regulates blood pH
C. Vocalization
D. Olfactory receptors
Functions of the nose
a. provides an airway for respiration
b. moistens and warms air
c. filters and cleanses air
d. location of olfactory receptors
e. adds resonance to voice
External nose
1. hyaline cartilage plates
attached tofrontal, nasal and maxillary
bones
2. external openings - external nares (nostrils)
Nasal Cavities – internal nose
1. cavity divided by nasal
septum (hyaline cartilage) that exits
through internal nares into pharynx
2. contains hair (filtration), numerous blood
vessels (warms air), and mucus glands
(traps debris and kills bacteria)
Paranasal sinuses
1. found in frontal, sphenoid, maxillary, ethmoid bones
2. respiratory functions – warm and moisten air,
trap debris in mucus
3. drain into internal nose
Author
skywayscott
ID
9344
Card Set
AnatomyResp
Description
Respiration
Updated
2010-03-07T00:45:50Z
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