ch.23 respiratory system Flashcards
if the volume of the lungs increases, what happens to the air pressure inside the lungs?
it decreases
what is the function of the nasal cavity?
- filters air
- Warm air
- humidifies air
- housing olfactory receptors
what does henry’s law state?
the volume of gas that will dissolve in a solvent is proportional to the solubility of the gas and the gas pressure
what would increase the amount of oxygen discharged by hemoglobin to peripheral tissues?
decreased pH
what is the largest cartilage of the larynx?
thyroid
what is the smallest cartilage of the larynx?
cuneiform
what does Dalton’s law state?
in a mixture of gases such as air, the total pressure is the sum of the individual partial pressure of the gases in the mixture
if a patient inhales as deeply as possible and then exhales as much as possible the volume of air expelled would be a patient’s _________
vital capacity
what is vital capacity?
is the maximum amount of air a person can exhale forcefully after taking a deep breath.
what is tidal volume?
is the amount of air a person breathes in or out during a normal relaxed breathe
what is reserve volume?
refers to the extra air a person can inhale (Inspiratory reserve volume) or exhale beyond the normal tidal breathing
what is inspiratory reserve volume?
inhale
what is expiratory reserve volume?
exhale
how many lobes does the right lung have?
3 lobes
how many lobes does the left lung have?
two lobes