ANATOMY

Detailed explanation-1: -At the end of each bronchiole are tiny air sacs called alveoli. This is the place where the exchange of oxygen and carbon dioxide actually happens. Each person has hundreds of millions of alveoli in their lungs. This network of alveoli, bronchioles, and bronchi is known as the bronchial tree.

Detailed explanation-2: -Tiny air sacs at the end of the bronchioles (tiny branches of air tubes in the lungs). The alveoli are where the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in and breathing out.

Detailed explanation-3: -The ducts number between two and eleven from each bronchiole. Each duct opens into five or six alveolar sacs into which clusters of alveoli open.

Detailed explanation-4: -In your lungs, the main airways (bronchi) branch off into smaller and smaller passageways-the smallest, called bronchioles, lead to tiny air sacs (alveoli).

Detailed explanation-5: -Alveoli are tiny, balloon-shaped air sacs in your lungs. The function of the alveoli is to move oxygen and carbon dioxide (CO2) molecules into and out of your bloodstream. Alveoli are an important part of your respiratory system, which includes the parts of your body that help you breathe.