Alveolus

Part of Speech

Noun

Pronunciation

IPA: /ælˈviːələs/

Definitions

• A small cavity or pit in a biological structure, typically referring to the tiny air sacs in the lungs where gas exchange occurs.
• In dental anatomy, a socket in the jawbone where a tooth is situated.
• In plant biology, the term is sometimes used to describe small cavities in plant tissues.

Usage Examples

• The alveolus plays a crucial role in oxygen absorption in the human respiratory system.
• The dentist examined the alveolus of the tooth to ensure proper fit for the dental implant.
• During plant growth, the alveolus serves as a site for storage or transport of nutrients.

Etymology

From Latin "alveolus," meaning "small cavity" or "little hollow," derived from "alveus," meaning "a hollow or a trough." The term reflects the sac-like nature of the structures in the lungs and other biological systems.

Synonyms

• Air sac
• Pulmonary sac
• Oxygen chamber

Antonyms

• Bronchi
• Trachea
• Bronchioles

Translations

Regional Pronunciation Variations

• USA: /ælˈviːələs/
• UK: /ælˈviːələs/
• India: /ælˈviːələs/

Historical Usage

The term "alveolus" was first used in the 17th century in medical texts to describe the small cavities in the lungs where oxygen is exchanged. Over time, its usage expanded to include other hollow cavities in organisms, particularly in relation to plant and dental anatomy.

Cultural Nuances

In medical cultures, especially in respiratory therapy and pulmonology, understanding alveoli is key to diagnosing and treating pulmonary conditions such as pneumonia, emphysema, and COVID-19. In various indigenous cultures, health practices often focus on lung and breathwork, where the concept of alveolar health is crucial for longevity.

More Information

An alveolus is a crucial component of the respiratory system, acting as the primary site for gas exchange in the lungs. It allows for the exchange of oxygen and carbon dioxide between the air and blood, making it essential for breathing. A healthy alveolar structure is vital for proper respiratory function. Diseases such as pneumonia, tuberculosis, and pulmonary fibrosis can affect alveolar function, leading to compromised gas exchange and difficulty breathing. Alveolar damage may result from smoking, pollution, or genetic conditions, highlighting the importance of maintaining lung health.