Pulmonary alveolus
Palabras clave
isolated,
white,
background,
object,
education,
illustration,
drawing,
vignetting,
science,
scientific,
educational,
diagram,
air,
sac,
pulmonary,
alveolus,
lung,
lung,
system,
respiratory,
anatomy,
bronchial,
blood,
supply,
gas,
exchange,
carbon dioxide,
duct,
gland,
lining,
tissue,
connective,
bed,
hollow,
cavity,
human,
structure,
vector