Bronchiole

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Bronchiole

Bronchiole (/brɒnˈkiːoʊl/) is a term used in the field of anatomy and pulmonology to describe the smallest airways in the lungs.

Etymology

The term "bronchiole" is derived from the Latin word "bronchus," which means windpipe, and the suffix "-iole," which is used to denote something small. Thus, "bronchiole" can be translated to mean "small windpipe."

Definition

Bronchioles are the smallest airways of the lungs, which lead from the bronchi to the alveolar ducts. They are defined as the airways lacking cartilage that are less than 1 mm in diameter.

Function

The primary function of the bronchioles is to ensure the flow of air to the alveoli. They also play a significant role in controlling air flow resistance and distribution of ventilation in the lungs.

Related Terms

  • Bronchus: The larger airway from which the bronchioles branch off.
  • Alveoli: The tiny air sacs at the end of the bronchioles where gas exchange occurs.
  • Pulmonary: Pertaining to the lungs.
  • Respiratory System: The group of organs and tissues, including the bronchioles, that enable breathing.

Pathology

Bronchioles can be affected by various diseases, such as Bronchiolitis, Asthma, and Chronic Obstructive Pulmonary Disease (COPD). These conditions can cause inflammation and constriction of the bronchioles, leading to difficulty in breathing.

See Also

External links

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