respiratory system part 2 (gas exchange) Flashcards
1
Q
what are the two major functions of primary diffusion
A
replenishes blood oxygen used for oxidative energy production
removes c02
2
Q
what is the respiratory membrane composed of
A
alveolar wall
capillary wall
basement membranes
3
Q
what is the percentage of o2, co2, N and other when you inhale
A
o2 21%
co2 0.037%
other 0.9%
N 78%
4
Q
what is the percentage of 02, co2 and N when you exhale
A
o2 16%
co2 4%
N 78 %
5
Q
where is the diaphragm located
A
underneath the lungs
6
Q
what happens to the diaphragm during inspiration
A
contracts and flattens to increase thoracic activity space
7
Q
where are the intercostal muscles locates
A
between each rib
8
Q
function of intercostal muscles during inspiration
A
contract lifting the rib cage up and outwards
