Epithelium: meaning, definitions and examples
๐งฌ
epithelium
[หepษชหฮธiหliษm ]
Definition
biological tissue
Epithelium refers to a type of tissue found in animals that forms a protective layer over body surfaces and lines cavities and organs. It consists of one or more layers of cells and plays crucial roles in absorption, secretion, and sensation. Epithelial tissue can be classified into various types based on the shape of its cells and the number of layers present, including simple and stratified epithelium, cuboidal and columnar epithelium. This tissue is essential for proper functioning of many organs, such as the skin, respiratory tract, and digestive system.
Synonyms
Examples of usage
- The skin is primarily made up of epithelial tissue.
- Epithelial cells line the surfaces of organs and blood vessels.
- The respiratory epithelium helps in the filtration of air.
- Epithelial layers are critical in nutrient absorption in the intestines.
Interesting Facts
Etymology
- Derived from the Greek word 'epithelium', combining 'epi' (upon) and 'thฤlion' (nipple), originally referring to the tissue covering the nipple.
- The term has evolved since the 19th century, as scientists better understood the types and functions of protective cell layers.
Anatomy
- Epithelial cells can be found in different shapes โ some are flat, others are tall like columns, which allow them to serve different functions.
- They create barriers and are crucial for absorption, secretion, and sensation throughout the body.
Health & Medicine
- Certain types of cancer originate in epithelial cells, known as carcinomas, making understanding this tissue vital for medical science.
- Epithelial tissue plays key roles in healing and regeneration, crucial for recovering from injuries.
Biology
- There are several types of epithelia, such as simple (one layer) and stratified (multiple layers), each suited to their functions.
- Epithelial cells are classified based on their shape and layering, influencing how they interact with their environment.
Cultural References
- In art and literature, the idea of layers is often metaphorically connected to the complexity of identity and personal experiences.
- Architects and designers may use concepts similar to epithelial layers when discussing protective structures in buildings.
Translations
Translations of the word "epithelium" in other languages:
๐ต๐น epitรฉlio
๐ฎ๐ณ เคเคชเคเคฒเคพ
๐ฉ๐ช Epithel
๐ฎ๐ฉ epitel
๐บ๐ฆ ะตะฟััะตะปัะน
๐ต๐ฑ nabลonek
๐ฏ๐ต ไธ็ฎ
๐ซ๐ท รฉpithรฉlium
๐ช๐ธ epitelio
๐น๐ท epitel
๐ฐ๐ท ์ํผ
๐ธ๐ฆ ุงูุจุทุงูุฉ
๐จ๐ฟ epitel
๐ธ๐ฐ epitel
๐จ๐ณ ไธ็ฎ
๐ธ๐ฎ epitel
๐ฎ๐ธ รพekja
๐ฐ๐ฟ ัะฟะธัะตะปะธะน
๐ฌ๐ช แแแแแแแแฃแแ
๐ฆ๐ฟ epitel
๐ฒ๐ฝ epitelio
Word Frequency Rank
Position #8,761 indicates this is an advanced-level word. While not essential for basic communication, it will enhance your ability to understand and create more nuanced content.
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- 8758 unfamiliar
- 8759 misdemeanor
- 8760 deployed
- 8761 epithelium
- 8762 cleavage
- 8763 overthrow
- 8764 balloon
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