nov 19th pulmonary topic Flashcards
1
Q
what is surfactant
A
a fluid on alveoli that helps them expand and become more elastic; allows the tension to be lowered
2
Q
ficks law of diffusion
A
the rate of transfer of gas through a tissue is directly proportional to the partial pressure difference between the two sides tissues surface area, a diffusion constant, and inversely proportional to the tissue thickness
3
Q
on top of mount Everest why is it so hard to breath
A
partial pressures- they drive the movement
oxygen is the same everyway its the partial pressure that can change
4
Q
the bigger the surface area then the
A
move oxygen will move
5
Q
pulmonary fibrosis
A
fiber or collagen (stiff tissue) build up
