pleura
/'pluərə/
Học thuậtThân thiện
Definition
- Noun:
- A thin serous membrane: The pleura is a thin, double-layered membrane that lines the thoracic cavity and envelops each lung. Its primary function is to facilitate smooth lung movement during respiration and to create a sealed, fluid-filled space.
Usage
- The word "pleura" is a singular noun. Its standard plural form is pleurae.
- It is a specialized anatomical term used primarily in medical, biological, and health science contexts.
- It is typically used with a definite article ("the") and is often modified by adjectives specifying location (e.g., parietal, visceral).
Examples
- Noun:
- Inflammation of the pleura is called pleurisy.
- The surgeon carefully examined the visceral pleura covering the lung's surface.
- A small amount of fluid in the pleural space acts as a lubricant.
Advanced Usage
- "Parietal pleura": Refers to the outer layer of the pleura, which is attached to the chest wall and diaphragm.
- The parietal pleura is sensitive to pain.
- "Visceral pleura": Refers to the inner layer of the pleura, which is firmly attached to the surface of the lungs themselves.
- The visceral pleura directly covers the lung tissue.
- "Pleural cavity/space": The potential space between the parietal and visceral pleurae, containing a small amount of lubricating pleural fluid.
- Air or fluid can accumulate in the pleural cavity, causing complications.
Variants and Related Words
- Pleural (adj): Of or relating to the pleura.
- Pleural effusion is a condition involving excess fluid in the pleural space.
- Pleurisy (n): Inflammation of the pleura, often causing painful breathing.
- His cough and chest pain were diagnosed as pleurisy.
- Pleurae (n): The standard plural form of "pleura".
Synonyms
- Serous membrane (of the thorax): A more general descriptive term.
- Pleural membrane: A synonymous phrase.
Notes on Different Meanings
- The word "pleura" has a single, specific meaning in modern English usage, referring exclusively to this anatomical structure. It does not have common metaphorical or non-medical meanings.
Noun
- the thin serous membrane around the lungs and inner walls of the chest