November 23rd Flashcards
symbols for gas pressure
P = partial pressure S A a = arterial blood v = mixed venous blood O2 CO2 other gases use chemical equation
why is c02 so high in the alveoli
goes from 0.3 in the environment to 40 within the alveoli
because you are simultaneously doing gas diffusion
carbon dioxide happens at the same time
as air goes in we are adding water and carbon dioxide***
when does gas diffusion happen
happens simultaneously
why does o2 not be dropped off quickly to the tissue (the curve of how we drop off oxygen)
to ensure a little bit of 02 is dropped off to the entire tissue(s) that need it
Henrys law refers to the movement of ____
gas in air and fluid
gases move from ___ to ___ pressure
high to low
the bigger the gradient the ___ it moves
the faster
why do we get impairments in gas exchange
tissue becomes fibrous
surface area is lost
these can screw up the ability for gas exchange
the blood carries oxygen two ways
in physical solution dissolved in the fluid portion of blood
in loose combination with hemoglobin the iron-protein molecule within the red blood cell
