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It passes across structures called Alveoli (part of Bronchioles, part of Bronchi) that are full of capillaries to allow blood to pass nearby and pick up the oxygen (binding to red blood cells by osmosis) then that is carried to the heart, then pumped out to the bodies organs which gather the oxygen and trade CO2 for it.
Or if you want it simpler;
The tissues in the lungs puts that Oxygen into red blood cells which go through your blood stream giving it to organs that need it, such as mussel and your brian.
What else can I help you with?
Does oxygen enter the bloodstream through the lungs the heart or the ventricles?
Lungs
Does oxygen enter the blood stream in the lungs or in the heart?
The lungs, I the alviolies.
What is the place where oxygen enter the blood?
lungs
Does blood enter the blood from the lungs?
no, it doesn't, but oxygen does.
When you breath in what happens to your lungs?
When you inhale, you breath in oxygen and your lungs get bigger.
How does oxygen enter the stream?
Oxygen enters the blood stream through the air sacs in you lungs.
How does oxygen enter the rats lungs?
Rat, like all mammals, have noses and mouths which lead to the lungs. When rats breathe in the air, the oxygen travel to the lungs where gas exchange occurs.
Why is it unnecessary for all of the blood to enter the lungs in a fetus?
It has to get oxygen and get rid of CO2
What happens to the oxygen levels in the blood as it moves through the lungs?
the oxygen releases carbon dioxide
Where in a mammal's body does oxygen enter the bloodstream?
Blood picks up oxygen and releases carbon dioxide in the lungs.
Where in a mammals's body does oxygen enter the bloodstream?
Blood picks up oxygen and releases carbon dioxide in the lungs.
Why does oxygen enter the lungs?
Because you suck in air through your mouth or nose and it goes into your lungs... it's called breathing =)
