The capillaries exchange carbon dixoide from the blood with oxygen from the air sacs.
function of capillaries in leaf
Oxygen
A functional unit of lung is called an Alveolus. one functional unit of lung consists of Alveolar sac, pulmonary capillaries and bronchial capillaries.
They are present in the lung surrounding the alveoli.
100 million
Pulmonary Capillaries
A functional unit of lung is called an Alveolus. one functional unit of lung consists of Alveolar sac, pulmonary capillaries and bronchial capillaries.
Because if blood pressure in lung capillaries was as high as it is in body capillaries, the hydrostatic pressure caused by this blood pressure would force blood plasma out of the capillaries into intracellular spaces (as is done in body capillaries) or into the alveoli. This would reduce the efficiency of gas exchange.
diffusion
Unoxygenated blood travels to the heart though the veins to be pumped to your lung capillaries. At you lung capillaries the blood becomes oxygenated and then goes back to the heart to pump oxygenated blood to the rest of your body. the capillaries blood travels though you arteries.
The function of the capillaries in the circulatory system is to allow diffusion of wastes, oxygen, and nutrients to the tissues. The rest of the circulatory system is designed to move the blood to the capillaries so they can perform this function.
a couple of miles long