it is the alveoli..
The smallest tube in the lungs is the Bronchus
The Air Sacs or The End of the Bronchioles.
Respiratory bronchioles end in alveolar sacs (alveoli).
alveoli. they are the basic functional unit of the lungs. it is where gas exchange occurs.
identify the part of the resperatory system which cluster of tiny thin walled sacs found at the end of leach bronchi
They are called alveoli
the Bronchioles, Air sacs and the Diaphragm
alveoli
If you are talking about in the lungs, it would be bronchioles.
Bronchioles.
Bronchioles. Air enters through the mouth, down the trachea and into the left and right main bronchi (which lead to the left and right lungs respectively) The bronchi then branch off continually into smaller and smaller bronchi. The very smallest of these are called bronchioles and they end in tiny air sacs called alveoli.
Starting from the left and right bronchi, bronchus for singular, these branch down from the trachea. Then the bronchi branch off to smaller bronchi and these branch off to bronchioles. The bronchioles contain air sacs at the end called alveoli and alveolus for singular.