Entity: LUNG
Lung is one of the paired respiratory organs in the thorax of air-breathing vertebrates, responsible for the exchange of oxygen and carbon dioxide in the bloodstream.
LUNG
Etymology
The word 'lung' originates from the Old English word 'lungen', which is derived from the Proto-Germanic word 'lungan'.
Definition
A lung is one of the usually paired compound saccular thoracic organs that constitute the basic respiratory organs of an air-breathing vertebrate. It is responsible for the exchange of oxygen and carbon dioxide in the bloodstream.
Historical Context
The study of lungs dates back to ancient times, with early anatomists recognizing their importance in breathing and sustaining life. Advancements in medical science have led to a better understanding of lung function and diseases.
Cultural Significance
Lungs have symbolic significance in various cultures, representing vitality, breath, and life force. In some traditions, the lungs are associated with emotions and spirituality.
Related Concepts
Lungs are closely related to the respiratory system, including the trachea, bronchi, and diaphragm. Lung diseases such as asthma, pneumonia, and lung cancer are significant health concerns.
See Also
- Respiratory System
- Pulmonary Circulation
- Lung Cancer
A vital organ in the respiratory system that facilitates the exchange of gases in air-breathing vertebrates.