Alveolus. gas exchange
Keywords
system,
respiratory,
oxygen,
lung,
blood,
human,
anatomy,
alveolus,
gas,
exchange,
respiration,
air,
lung,
pulmonary,
capillary,
red,
medicals,
organ,
health,
science,
biology,
structure,
medicine,
illustration,
carbon,
dioxide,
disease,
education,
breathe,
healthy,
artery,
heber,
health care,
care,
chronic,
cross section,
diagram,
immune,
labeled,
research,
section,
vector,
worked,
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