Because you want as much air to dissolve into your blood as possible. If you have loads of tiny air sacks then the rate that air is dissolved into your blood is greatly improved. If you ever get a chance to see a dissection of a lung then i recommend it, it makes understanding the lungs a lot easier.
These are the bronchi. (One bronchus, two bronchi).
bronchioles
Bronchi are the two tubes that branch off into each lung.
The small air tubes that lead to the alveoli are called bronchioles. They branch off from the bronchi and continue to subdivide into smaller tubes within the lungs, eventually ending in the alveoli where gas exchange occurs.
major bronchi
By I only ought be able skills and tomorrow morning to be able skills
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.
The trachea branches into two primary bronchi which farther branch into secondary bronchi.
The two branching tubes in the respiratory system are the bronchi. They are branches of the trachea.
The tubes at the bottom of the windpipe are called bronchi, which branch off into smaller tubes called bronchioles that lead to the lungs. They are part of the respiratory system and play a crucial role in transporting air to and from the lungs for gas exchange.
The bronchial tubes (or bronchi) are the large tubular structures within the lungs. These carry air into the lungs from the trachea. They branch into smaller tubes called bronchioles, and then to the smallest tubes that contain the alveoli (air sacs) of the lungs.
Bronchi