How do your lungs perform their function?

Answer 1

The lungs are the part of the respiratory system where the exchange of gases from the outside are made with the body. The basis of the system is that gases will move across a permeable surface in proportion to their relative concentrations. Sounds too formal? Well, think of how a dot of dye fades as it spreads in water.

In the case of the lungs oxygen in the atmosphere accounts for about 20% of the ambient gas. Since metabolism consumes oxygen the concentration of oxygen in the body is less than that, so the net movement of oxygen is from the air into the body. Similarly carbon dioxide, the result of metabolism, is greater within the body than in the surrounding air. In the lung the net movement of carbon dioxide is from the lung to the exhaled air.

This really is a great subject. For example the disease black lung that coal miners suffer from is due to coal dust mediated changes to the lung tissue that decrease permeability. Since the movement of oxygen is dependent on the concentration difference and permeability people with black lung are in oxygen starved. The mirror image is going up to the top of a high mountain where the concentration of oxygen is too low. There you are oxygen starved not because of a permeability change, but due to a decrease in the concentration difference.

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Answer 2

The lungs provide a surface for gas exchange in mammals. Inside the lungs are the alveoli, in which oxygen dissolves into the blood. Is is basically a gas exchange.

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The lung is an essential respiration organ in all air breathing animals. The main function is to transport oxygen from the atmosphere into the bloodstream and to release carbon dioxide from the bloodstream into the atmosphere.

Answer 3

Muscles in the rib cage and diaphragm force air in and out of the lungs. Fresh air coming into the lungs during inhalation gives up some of its oxygen to sac-like cells called aveoli that transfers the oxygen to the blood. The aveoli collect carbon dioxide and other waste products from the blood and transfer it into the air when stale air is being expelled by exhalation from the lungs.

Answer 4

Vital capacity is the volume of the most air you can exhale after fully breathing in. Tidal air is the volume of air inhaled and exhaled during normal breathing. Residual air is the volume of air left in the lungs after exhalation. Inspiratory Reserve is the air inhaled after tidal air is exhaled. Expiratory Reserve is the amount air that can be blown out after tidal air is blown out. A spirometer can be used to used to measure your lung capacity. Now your question. Lung Capacity is all that was explained above.

Answer 5

The Lungs are paired organs in the chest that perform respiration. Each human has two lungs. Each lung is between 10 and 12 inches long. The two lungs are separated by a structure called the mediastinum. The mediastinum contains the heart, trachea, esophagus, and blood vessels. The lungs are covered by a protective membrane called the pulmonary pleura.

Answer 6

they perforn their function by pumping air in and out of your blood and around your body. they have an important part to play as we would not be able to breath without the function that our lungs have to play.

Answer 7

There is a large sheet of muscle below your lings - called the diaphragm (pronounced 'diafram'). When you breathe in - your diaphragm and the muscles around your ribs contract. This draws air into your lungs. The oxygen from the air is absorbed into your bloodstream - and your muscles relax - this expels the unused air out of you lungs - along with waste carbon dioxide.

Answer 8

Your lungs take in the oxygen from the air and helps you breathe