No. This is an common misconceptiion. Respiration is considered external if it occurs in the lungs. When it occurs in body tissues it is considered internal respiration.
Oxygen enters the blood in the alveoli of the lungs
Oxygen enters the blood in the alveoli of the lungs
Oxygen is removed from the alveoli by the cappillaries.
They are called alveoli
Alveoli contains water and blood supply there are lot's of them around your body so if one dies there will still be thousands left in your body. Alveoli is thin so things can pass out and in. It enters the rectrum where waste exists fromxx
Oxygen enters the pulmonary blood in the capillaries of the alveoli -- the air sacs of the lungs.
When air enters the empty alveoli in the lungs they become inflated. Now the blood vessels inside the alveoli can take oxygen from this air and put carbon dioxide into it.
In the alveoli whichvare at the end of the brochioles in the lungs.
carbon dioxide
oxygen enters the blood and carbon dioxide
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.