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Capillary walls receive oxygen in the lungs by a process known as diffusion.
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∙ 14y ago
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What is a capillary features?
A capillary has a very narrow lumn and very thin wall. These features maximize diffusion of nutrients, wastes, and oxygen.
Does the exchange of oxygen and carbon dioxide takes place through the capillary wall?
Yes it does.
How does oxygen moves from the respiratory system to the circulatory system?
by diffusion across a capillary wall
How does oxygen move the respiratory system to the circulatory system?
by diffusion across a capillary wall
Where does oxygen transfer during the transition between the respiratory and circulatory system occur?
By diffusion across a capillary wall.
How is the wall of a capillary suited for the exchange of materials in tissues?
The wall of a capillary is extremely thin.
What happens when blood reaches tissues?
When blood reaches the tissues, cells, and organs via the capillaries, materials diffuse across the capillary wall so that the cells, tissues, and organs receive nutrients and oxygen, and eliminate wastes.
From what does cells in the capillary wall receive blood?
The capillaries use blood to absorb O2, and nutrients, and also dispose of waste products
From what does capillary cell wall receives blood?
The capillary cell wall receives blood from the interstitial fluid.
Where do red blood cells drop off oxygen?
Red blood cells release their oxygen in the capillaries. The oxygen diffuses across the capillary wall to reach the body tissues.
Why is the distance between the air in an alveolus and the blood in an alveolar capillary is less than 11000th of a millimetre?
Around the lungs,the blood is separated from the air inside each alveolus by only two cell layers; the cells making up the wall of the alveolus and the capillary wall itself. This is a distance of less than a thousandth of a millimetre. Because the air in the alveolus has a higer concentration of oxygen than the blood entering the capillary network, oxygen diffuses from the air across the wall of the alveolus and into the blood. That is why the distance is important.
How does a hospital patient receive oxygen?
In the hospital, oxygen is supplied to each patient room via an outlet in the wall. Oxygen is delivered from a central source through a pipeline in the facility. A flow meter attached to the wall outlet accesses the oxygen.
