Oxygen
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Oxygen rich air enters the body through the lungs.
The air sacs in your body, known as alveoli, hold oxygen-rich air that is essential for respiration. When you inhale, oxygen from the air enters the alveoli and diffuses into the bloodstream, while carbon dioxide from the blood is expelled into the alveoli to be exhaled. This exchange of gases is crucial for providing oxygen to your body's cells and removing waste gases.
The tiny air sacs are called alveoli. Oxygen from the air enters the bloodstream through the walls of the alveoli, while carbon dioxide from the bloodstream is released into the air sacs to be exhaled.
Oxygen enters the pulmonary blood in the capillaries of the alveoli -- the air sacs of the lungs.
Oxygen enters the blood stream through the air sacs in you lungs.
In mammals, air enters the lungs through tubes called bronchi, which branch into smaller tubules called bronchioles. These bronchioles extend out to tiny air sacs called alveoli, where gas exchange occurs.
They need a lot of blood.
Labryinth fish have air sacs and can gulp air.
The bronchi continue to divide into smaller and smaller branches until they end in air sacs. The air sacs in the lungs are called alveoli.
Tiny air sacs where the exchange of gases between air and blood takes place are located in the lungs. These air sacs are called alveoli and are surrounded by capillaries where oxygen from the air enters the blood and carbon dioxide exits the blood into the air.
The organ that supplies a human's bloodstream with oxygen from the air is the lungs. When we inhale, air enters the lungs, and oxygen from the air diffuses into the bloodstream through the alveoli, tiny air sacs where gas exchange occurs. This oxygen-rich blood is then circulated throughout the body to supply tissues and organs.