Respiratory. They are the air sacs in your lungs.
The respiratory and circulatory systems are involved in the exchange of gases between the alveoli and blood. The alveoli are part of the lungs, and their surrounding capillaries are part of the circulatory system.
the alveoli
alveoli
Alveoli
There are alveoli in your lungs and in your mouth.
Bronchioles are part of the respiratory system and branch from the bronchus. Air from the bronchus enters the terminal bronchioles that terminate in air sacs known as alveoli.
Alveoli
your lungs have structures called alveoli. The alveoli are surrounded by capillary beds which carry blood. The oxygen enters the alveoli when you inhale. The oxygen then diffuses from high concentration in your alveoli to low concentration the blood in the capillaries surrounding the alveoli.
your lungs have structures called alveoli. The alveoli are surrounded by capillary beds which carry blood. The oxygen enters the alveoli when you inhale. The oxygen then diffuses from high concentration in your alveoli to low concentration the blood in the capillaries surrounding the alveoli.
The respiratory system is involved in removing carbon dioxide from the body. Carbon dioxide is carried to the alveoli by the circulatory system. There, it diffuses across the membrane into the alveoli and is exhaled.
alveoli take co2 from
All of it. Every cell in the human body (exept alveoli cells) require blood that has been oxygenated by the lungs.