Bronchial tube

Bronchial Tubes are a key component of the respiratory system, responsible for the transportation of air to and from the lungs. They are a continuation of the trachea, splitting into two main bronchi that enter the lungs, and further dividing into smaller bronchi and bronchioles.

Anatomy

The bronchial tubes originate from the lower end of the trachea, at the level of the fifth thoracic vertebra. The trachea divides into the right and left main bronchi. The right main bronchus is wider, shorter, and more vertical than the left. Each main bronchus then enters its respective lung and further divides into lobar (secondary) bronchi, each supplying a lobe of the lung, and then into segmental (tertiary) bronchi, each supplying a bronchopulmonary segment.

Function

The primary function of the bronchial tubes is to facilitate the transport of air from the trachea into the lungs and back out. They also have a role in the immune defense of the lungs, as they are lined with cilia and mucus that trap and remove foreign particles and microorganisms.

Diseases and Disorders

Several diseases and disorders can affect the bronchial tubes, including bronchitis, asthma, bronchiectasis, and lung cancer. These conditions can lead to symptoms such as cough, shortness of breath, wheezing, and chest pain.

Treatment

Treatment of bronchial tube disorders depends on the specific condition and its severity. It may include medications such as bronchodilators, anti-inflammatory drugs, antibiotics, or in severe cases, surgery.

See Also

• Respiratory system
• Lungs
• Trachea
• Bronchitis
• Asthma
• Bronchiectasis
• Lung cancer