The developing lung is particularly vulnerable to changes in the levels of vitamin A. Vitamin A deficiency has been linked to changes in the epithelial lining of the lung and in the lung parenchyma.
Lung, in air-breathing vertebrates, either of the two large organs of respiration located in the chest cavity and responsible for adding oxygen to and removing carbon dioxide from the blood.
A typical adult lung weighs about 2.2 pounds (1 kilogram) and is a little longer than 9 inches (about 24 centimeters) when you’re breathing normally. It’s about 10.5 inches (27 cm) when your lungs are completely expanded.
Each soft, spongy lung is roughly cone-shaped with the superior end of the lung forming the point of the cone and the inferior end forming the base. The superior end of the lungs narrows to a rounded tip known as the apex.
The WINDPIPE (trachea) is the passage leading from your throat to your lungs. The windpipe divides into the two main BRONCHIAL TUBES, one for each lung, which divides again into each lobe of your lungs. These, in turn, split further into bronchioles.
The left lung has two lobes and one fissure; while the right lung has three lobes and two fissures. The lobes are then further subdivided into bronchopulmonary segments; such that the left lung has 9 – 10 segments, while the right lung has 10.
Healthy lifestyle habits, such as physical activity and not smoking, can help prevent lung injury and disease.
The right lung is larger than the left lung and has three lobes, while the left lung has two lobes. The lungs oxygenate blood by bringing in air through the trachea and into the alveoli.