physio quiz

inspiration

breathing in

expiration

breathing out

pulmonary ventilation

exntrance and exit of air in and out of lungs

external respiration

exchange of gases between air and blood

internal respiration

exchange of gases between blood and tissue fluid

spirometry

procedure that measure air volumes

tidal volume

amount of air moved in and out during a single respiratory cycle (500mL)

expiratory reserve volume

air that enters/exits the lungs during max forced expiration (1,200 mL)

inspiratory reserve volume

air that enters/exits lungs during max forced inspiration ( 3,000mL)

residual volume

amount of air remaining in the lungs after the most forceful expiration (about 1,200mL)

vital capacity

maximum volume of air exhaled after taking deepest breath possible (about 4,600mL)

inspiratory capacity

maximum volume of air inhaled after resting expiration (2,300mL)

functional residual capacity

air remaining in lungs following resting expiration (2,300mL)

total lung capacity

vital capacity plus residual volume

anatomic dead space

some air does not reach the alveoli and occupies anatomic dead space

coughing

clears lower respiratory passages

laughing

taking breath and releasing it in series of short expirations

sneezing

clears upper respiratory passages

hiccup

sudden inspiration due to spasmodic contractions of diaphragm while glottis is closed

yawning

single deep inhalation with mouth open