respiratory system pt 2 function Flashcards
what type of movement is breathing classed as
voluntary and involuntary
what is it defined as
air moving into and out of the lungs
why does air move into and out of lungs
due to difference in pressure
air pressure is manipulated by…
changing volume of storage vessel
whats breathing in called
inspiration, inhalation
explain why we dont suck in air
its a passive process of equalizing pressure
where must high pressure be to breath in
atmospheric
where must low pressure be to inhale
lungs
wher emust high pressure be to breathe out
lungs
where must low pressure be to breathe out
atmosphere
how to decrease air pressure in lungs
greater volume
how to increase pressure in lungs
smaller volume
what changes to mke lungs bigger
diaphragm contracts moves down intercostal muscles move ribcage up and out
what changes to make lungs smaller
diaphragm relaxes to go back up intercostal moves down and back
why cant you breath in anymore at a certain point
youve reached equal pressure
