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because it needs to move in its own space is well.

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Why is there large surface area for the alveoli?

The function of alveuli is to provide a surface for gas exchange. Therefore, a large surface area means that there is a lot of area for the gas exchange to take place. Therefore it is to improve efficiency of gas exchange in the lungs (exchanging carbon dioxide for oxygen). The large surface area is due to the shape of the alveoli- the have many small "pockets".


How is a large surface area achieved in the respiratory system?

Oxygen must diffuse through the cell membranes of the alveoli in the lungs. This diffusion depends upon the concentration gradient between the air in the lungs and the dissolved oxygen in the blood moving through the lung tissue. Air is only about 20% oxygen, so in order to load up the blood with oxygen, there must be lots of surface area for diffusion from the air.To allow for huge amounts of oxygenated blood be diffused from the alveoli to a capillary network. and for CO2 to travel form the blood capillary network into the alveoli. The surface area is huge because massive amounts of O2 and CO2 are diffused each minute= around 6- 10 liters.Whilst exercising you can use around 100 liters of oxygen per minute.Human lungs have a large surface area so that gas exchange can take place more efficiently and effectively. Carbon dioxide must come out of the blood and into the inspired air while oxygen must be absorbed by the blood from that air. A larger surface area means more area (more places) for gas exchange to take place.Alveoli in the lungs increase the overall surface area of the lungs, to encourage more diffusion to take place, so that a greater volume of oxygen / carbon dioxide can be transferred out of / into the lungs.it need room for oxygen to travel in an out.


Why does the internal structure of the lungs has an extensive surface area?

Lungs have large interior surface area because they're not just big bags. On the inside, they're full of a spongy network of smaller, smaller, and ever-smaller air passage-ways, ending in tiny dead-end sacs called alveoli. Every tube, sac, detour, fork in the road, branch, split-off, and tiny dead-end has walls with surface area. The speed at which oxygen can be transferred into the blood stream depends on the collective surface area of the alveoli contained in the lung. That is why we have alveoli, filling the lungs like a sponge. We need the oxygen collected by the bloodstream in order to burn the energy that our body has stored, and a faster input of oxygen allows a faster burning of that energy - hence the advantage of having that maximized surface area. One common result of many years' smoking is that the wall between two adjacent passage-ways shrivels up and disappears, and those two passageways merge and become one. That reduces the surface area in that tiny part of the lung. When it progresses to thousands of tiny parts of the lung, you start to notice it ... you're short of breath, because the interior surface area of your lung is reduced, and you can't grab enough of the oxygen from the air you take in. That's the condition called 'emphysema'.


Can a person live on two aveoli?

No, we need many, many alveoli to give the surface area needed for gas exchange.


What makes lungs well adapted for gas exchange?

the alveolusOTHER ANSWER:The surface area is kept moist to allow the oxygen and the carbon dioxide to pass troughand large surface area is availeble.By Fla97Answer2:The walls of the alveoli are adapted for efficient gas exchange in the following ways:(i.)Large surface area. The total surface area of all the alveoli in both the lungs is over 100m2.(ii.)Thin Walls. Alveolar walls are composed of a single layer of cells called epithelium. The surrounding capillary walls are also one cell thick. So gases need to diffuse only across this small distance to get into the blood.(iii.)Moist Surface. Special cells in the wall of the alveoli produce a watery fluid so oxygen can dissolve, then diffuse into the blood cells of the capillary.(iv.)The vast network of capillaries surrounding the alveolus supply blood to continuously carry the oxygen away from, and carbon dioxide to, the alveoli. In red blood cells, the presence of a respiratory pigment called hemoglobin, which combines with oxygen, increase the oxygen carrying ability of blood. The continual removal of oxygen keeps oxygen levels low in the capillaries. This favors rapid diffusion of oxygen from alveolus to blood as a steep diffusion gradient is mantained.Note: adaptations (i) to (iv) are structural adaptations(v.)Ventilation of lungs. The constant movement of air in and out of lungs maintains an efficient diffusion gradient for exchange of oxygen and carbon dioxide which takes place between the air and blood capillaries surrounding the alveoli lungs.


What is the relationship between alveoli and emphysema?

The alveoli are like plump grapes that are empty inside. They need the plump surface area for capillaries to wrap around them, so Red Blood Cells can trade oxygen molecules for carbon dioxide molecules. But in emphysema, the alveoli collapse. Surface area shrinks. The person cannot get good O2. The body starts to rely on increased CO2 (rather than low O2) to regulate when to breathe.


Why is the surface of aveoli thin?

The thin surface of alveoli allows for efficient gas exchange between the air in the lungs and the blood in the capillaries. This thinness minimizes the distance oxygen and carbon dioxide need to diffuse, ensuring rapid exchange and efficient oxygen uptake by the body.


Three ways in which the lungs are adapted for gas exchange?

Many alveoli-increases surface area for gas exchange Thin alveolar wall-allows gases to diffuse easily and fast Thin capillary wall-easy diffusion Inner wall of alveoli-allows gases to dissolve, which they need to enter the capillary


Why do alveoli got a very good blood supply?

Of course, the lungs receive a full flow of blood straight from the heart, because the entire blood supply must be oxygenated and have it's carbon dioxide removed continuously. The alveolis' function is to provide a large surface area for the gas exchange to take place. These millions of tiny air sacs have a surface covered in very fine capillaries.Their combined surface area is about the same as a tennis court,co-incidently similar to the surface area in the small intestine.


Why are so many blood capillaries around the alveoli?

because they need to have the proper exchange of CO2 in the respiratory system to help the lungs carry out or organs for that matter, carry out the specific functions in order for this system to have success.


What is the function of simple squamous epithelium of the alveoli?

The alveoli is just one cell layer thick so that diffusion of gasses between the capillaries and the alveoli is easy. Simple squamous epithelium are found in the capillary walls and the alveolar walls. They are thin so diffusion is easy.


What is a real world example of surface area?

A practical need to calculate surface area arises, for example, when you need to paint your house. The amount of paint you need is proportional to the surface area you want to paint.