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Oxygen is, of course, a gas our bodies are dependent on and need for us function properly. However, our body doesn't produce oxygen yet it is present in our external environment (in the air). So our body has specific structures and systems in place to function to extract this gas from the environment so we can use it. We breath in oxygen and it enters the alveoli in our lungs which are like tiny air sacs. These sacs are covered by a thin film of moisture and are also in close proximity to a complex network of blood cappilaries. Substances move accross membranes through diffusion which is due to a difference in concentrations of that substance on both sides of the membrane. The movement occurs from places of high concentration to places of lower concentration, down the concentration gradient, thus, it is a passive process. The blood that has pumped around our body has been depleted of oxygen as our body cells have taken it up which leaves the blood that comes to the alveoli deoxygenated and low in concentration of oxygen (however it is is high in concentration of CO2 which is a waste product of cellular respiration). When we breathe in, the air that enters are lung is full of oxygen (infact about 20.95%) thus we can say that there is higher concentration of o2 in the alveoli than there is in the blood. This triggers diffusion to occur from the alveoli to the blood hence we can say that differences in concentration causes it diffuse over. The gas has to pass through that thin film of moisture which is essential as gases can only be exchanged in a dissolved form. hope this helps, email mitchcook@live.com for further explanation
What else can I help you with?
What causes oxygen to diffuse into the blood from the alveoli - simplest anwer?
A diffusion gradient.
Oxygen diffuse into the blood at the alveoli?
Carbon dioxide does.
What causes oxygen from the water to diffuse into the blood?
the lungs causes oxygen from the water to diffuse into the blood
Do alveoli have C shaped rings around them?
Alveoli are surrounded by capillaries so that the oxygen can diffuse into the blood and carbon dioxide can diffuse out. I think it depends on the shape of the alveoli to the path of the capillary.
Air sacs in the lungs through which oxygen and carbon dioxide diffuse into and out of the blood are the?
alveoli
Which way would O2 and CO2 diffuse during internal respiration?
O2 would diffuse into the cells, and CO2 would diffuse into the systemic capillaries.
How it is possible for oxygen to diffuse rapidly into the blood?
Oxygen diffuses rapidly into the blood due to the concentration gradient between the alveoli in the lungs and the blood in the capillaries surrounding them. The alveoli have a high concentration of oxygen, while the blood has a lower concentration, which drives the diffusion of oxygen across the thin walls of the alveoli and capillaries. Additionally, the large surface area and short diffusion distance in the lungs help facilitate the rapid diffusion of oxygen into the blood.
What organ does the oxygen-carbon Dioxide take place?
Oxygen is brought into the blood, and carbon dioxide released from the blood, at the alveoli of the lungs. Gases diffuse across the alveolar membrane to enter or leave the blood.
Does carbon dioxide diffuse from the capillaries to the alveoli?
yes while oxygen then diffuses into the blood, and carbon dioxide diffuses out. it's a chain
Why aren't the alveoli dry and not wet all the time?
The moistness of the alveoli allows for exchange of gases. This is the primary function of the alveoli, and the lungs. Gases can dissolve in water, but they can not dissolve in dry solid material. If the alveoli were dry, oxygen could not diffuse into the blood and carbon dioxide could not diffuse out. Such a person would suffocate.
Why is the alveolus important to the breathing system of humans?
Alveoli in the lungs are important because they help with the transportation of oxygen to the blood. They are also called the pulmonary alveoli.
Why oxygen diffuses from the alveoli into the blood?
Oxygen diffuses from the alveoli into the blood because of a concentration gradient. The partial pressure of oxygen in the alveoli is higher than in the blood, so oxygen moves across the thin membrane of the alveoli into the blood to reach equilibrium.
