During exhalation the intra-alveolar pressure rises to approximately 3 mm Hg.

Synonym for reducing or consolidating video

Lung cancer may also be responsible for formation of an abscess.

The first symptoms include a dry cough and chest pain.

The external intercostal muscles provide flexibility to the thoracic cage and allow more room for lung expansion by elevating the anterior end of each rib, thereby increasing the anterior-posterior diameter of the chest wall.

Deflation of the lungs is chiefly a passive maneuver.

Such diseases include lung abscess an infection of the lung, characterized by a localized accumulation of pus and destruction of tissue.

It may be a complication of pneumonia or tuberculosis.Relief of pneumothorax and collapse of the lung from accumulations of either air or fluids within the pleural space may be provided by aspiration of the air or fluid from the thoracic cavity (.The air brought to the lungs is filtered, moistened, and warmed on its way along the respiratory tract but it can nevertheless bring irritants and infectious organisms, and when the body resistance is low for any reason the lungs may suffer diseases of some seriousness.The lungs are divided into lobes, the left lung having two (the left upper lobe and the left lower lobe) and the right having three (the right upper lobe, the right middle lobe, and the right lower lobe); these are further subdivided into bronchopulmonary segments, of which there are about 20.Protecting each lung is the pleura, a two-layered membrane that envelops the lung and contains lubricating fluid between its inner and outer layers..Although the exact cause of lung cancer is not known, inhaled carcinogens are known to be important predisposing causes.