Respiratory Study Guide Flashcards
functions of the respiratory system
Speech Smell pH Blood pressure O2 & CO2 exchange between blood and air
Respiratory division?
Consists of the alveoli and other gas-exchange regions
Conducting Division?
Serves only for airflow
What organs make up upper respiratory tract?
Nose, Pharynx, Larynx
Organ of lower respiratory tract?
Trachea, lungs
Functions of nose
warms, cleanses, & humidifies inhaled air, detects odor, amplifies voice, secrete mucous/trap pathogens
Function of nasal concha?
increase airflow
function of olfactory epithelium
detects odors
Respiratory epithelium function?
secrete mucous
Erectile tissue function?
senses pressure and temp
3 regions of pharynx
nasopharynx, oropharynx, laryngopharynx
larynx function?
keep food/drink out of airway and sound production
vestibular folds functions?
close larynx while swallowing
vocal chord functions?
produce sounds when air passes through them
Intrinsic muscle functions
Control vocal chords by pulling on cartilage
Extrinsic muscle function?
pull larynx upwards towards epiglottis
Function of Epiglottis?
Flap of tissue that guards larynx opening
Mucocilliary escalator function?
remove debris
Where do most of the aspirated objects end up?
right bronchus
Terminal bronchioles are…
final branches of conducting division
Respiratory bronchioles are…
beginning of the respiratory division
Three types of cells in lungs?
Squamous, Great (Type 2) alveolar cells, Alveolar macrophages (dust cells)
Characteristics of Squamous cells?
95% of surface area, gas exchange
Great (Type 2) alveolar cells characteristics?
secrete pulmonary surfactants