EXAM 4: respiratory & digestive systems
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16 Terms
why are the cartilaginous rings in the trachea incomplete?
to allow esophagus behind it to expand when swallowing
what type of tissue lines the trachea?
ciliated columnar epithelium
what is the numeric tooth formula for a human adult?
2123
how many teeth do adults have
32
what is the function of the nasal conchae?
warm, humidify and filter inhaled air
trace nasal cavity to trachea (for inhale) :
nose → nasal cavity → pharynx → larynx → trachea
how many lobes are in the right lung?
3
how many lobes are in the left lung?
2
why is the left lung smaller?
to accommodate for the heart
the cardiac notch is in the ____ lung
left
what type of epithelium tissue lines alveoli?
simple squamous
why does simple squamous line the alveoli?
to allow for quick diffusion
what is breathing/ventilation?
process of air entering lungs (inhalation) and exiting lung (exhalation)
what is respiration?
process by which O2 and CO2 are exchanged in lungs and tissues
what is a pulse oximeter?
device that indirectly measures the oxygen saturation of an individual’s blood (how much oxygen the blood is carrying)
what is the function of the epiglottis?
folds over to prevent food, liquid, salvia from entering trachea
