respiartory system Flashcards
travel of air
nose
pharynx
larynx (voice box)
down trachea(windpipe)
right or left bronchus
subdives into secondary bronchi
thinner and branch into bronchioles
lead to alveoli
alevoli
repsonsible for exchange of gases between lungs and blood
help gaseous exchange
structure of aveoli
helps with gaseous echange
very thin walls (one cell thick) to allow short diffusion pathway
gaseous exchange
movement of oxygen from air into blood
movement of carbon from blood into air
diffusion
moevemnt of gas molecules from area of high concentration to area of low concentration or partial pressure
tidal volume
volume of air breathed in or out per breath
increases during exercise
inspiratory researbe voleume
volume of air that can be forcifbully inspired after a normal breath
decreases during exercise
expiratory reserve volume
volume of air that can be forcifly breathed out during normal breath
residual volume
volume of air left in lungs afer max expiration
satys same during exercise
minute ventilation
volume of air beathed in or out per minute
big increase druing exercise
how can we masure how much we breathe in and out
spirometer
what happens to inspiratpry and experiortory reserve voluem as tidal volume increases
tial volume increases and ins and exp decrease
gaseous exchnage
conerned about getting oxygen into lungs so can diffuse in blood
removal of Co2 from blood
gaseous exchange at the alveloi
what is the difference in partial pressure reffered to
concentration/diffusion gradient
bigger the gradient, faster diffusion will be
