Lungs are sacks of tissue located just below the rib cage and above the diaphragm. They are an important part of the respiratory system and waste management for the body. A person’s lungs are not the same size. The right lung is a little wider than the left lung, but it is also shorter. Typically, a man’s lungs can hold more air than a woman’s. At rest, a man’s lungs can hold around 750 cubic centimetres (about 1.5 pints) of air, while a woman’s can hold around 285 to 393 cc (0.6 to 0.8 pints) of air.
Function of lungs
The right lung is divided into three different sections, called lobes. The left lung has just two lobes. The lobes are made of sponge-like tissue that is surrounded by a membrane called pleura, which separates the lungs from the chest wall. Each lung half has its own pleura sack. This is why, when one lung is punctured, the other can go on working. The lungs are like bellows. When they expand, they pull air into the body. When they compress, they expel carbon dioxide, a waste gas that bodies produce. Lungs do not have muscles to pump air in and out, though. The diaphragm and rib cage essentially pump the lungs.
Diseases affecting lungs
- Asthma, which is a reactive airway disease
- Lung cancer is cancer that originates in the lungs.
- Chronic obstructive pulmonary disease (COPD) is long-term lung disease
- Lung infections, such as bronchitis or pneumonia, are usually caused by viruses,