alveoli
AVVEOIL
alveoli
the thin-walled sacs in the lungs are the alveoli. they are tiny are sacks in your lungs.
the thin-walled sacs in the lungs are the alveoli. they are tiny are sacks in your lungs.
the thin-walled sacs in the lungs are the alveoli. they are tiny are sacks in your lungs.
The little sacks found in you LUNGS are called ecoli and they fill up with air every time you breath in.
A birds bones has tiny air sacks throughout them. All of the sacks are connected to the lungs.
lungs
In the lungs? Alveoli :)
the lungs
These tiny air sacs are called alveoli. These alveoli are surrounded by capilaries tiny blood vessells. These capilaries have holes that are to small for blood cells to escape but are big enogh for oxygen molecules to pass in to the blood stream and attach to the haemoglobin in your blood.
The tiny projections are called cilia.