Sign up for FlowVella
Sign up with FacebookAlready have an account? Sign in now
By registering you are agreeing to our
Terms of Service
Loading Flow
Downloading Image /
Downloading Image /
Downloading Image /
Alveoli
Alveoli: as millions of alveoli fill up with air, the lungs get bigger (tiny air sacs at the end of bronchioles)
#1
Downloading Image /
Downloading Image /
Downloading Image /
Downloading Image /
Downloading Image /
FlowVella, Previously Known As Flowboard
© 2026 FlowVella
FlowVella
