The little sacks found in you LUNGS are called ecoli and they fill up with air every time you breath in.
alveoli
Your question is unclear. Are you asking what does the most in the respiratory system , then tiny little sacs called the alveoli do.
The insect respiratory system operates by passive exchange of gasses through tiny holes called spiracles in their abdomen.
Cilia are the tiny hairs that sweep dust and dirt out of the respiratory system.
The respiratory system absorbs oxygen. Oxygen is inhaled through the nose and mouth, passes through the trachea, and enters the lungs where it is absorbed into the bloodstream through tiny air sacs called alveoli.
The tiny tubes that carry the secretions of glands to the areas that need them are called ducts. These ducts can be found in various parts of the body, such as the digestive system, respiratory system, and reproductive system.
Its called an Abobafart. It ic called this because tiny elves that move the diaphragm are called Abobs. When they fart its so smelly that a small explosion occurs in the diaphragm, causing it to move fast. This causes shortness of breath and enflames some broncials in your lung. If the Abobs fart too much, you get athsma.
They are called spiracles, tiny tubes alongside the insect's body which allow it to receive air. Kind of like gills, but for insects. Good luck!
The respiratory system contains mucous and tiny hairs called cilia. These are primarily found in the trachea and bronchi to help remove dust, debris, and pathogens from the airways.
The special cell that lines all the tubes in the respiratory system is called the ciliated columnar epithelial cell. These cells have tiny hair-like structures called cilia that help to sweep mucus and debris out of the respiratory tract to keep it clean and free of particles.
These are called cilia.
The respiratory system brings in oxygen through the process of inhalation. When you breathe in, air is drawn into your lungs where oxygen is transported into the bloodstream through tiny blood vessels called capillaries in the alveoli. This oxygen is then carried to cells throughout the body to support their functions.