Cilium Meaning: Definition, Examples, and Translations
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cilium
[ˈsɪliəm ]
Definition
biological cell
A cilium is a microscopic, hair-like structure that extends from the surface of a eukaryotic cell. It plays a crucial role in movement and sensory functions. Cilia can be found in various types of organisms, including protozoa and certain animal cells. The primary function of cilia is to facilitate movement, either by beating in a wave-like motion or by propelling the cell through liquid. Additionally, cilia are involved in the transport of fluids across the surface of some cells.
Synonyms
Examples of usage
- The respiratory tract contains cilia that help to expel mucus.
- Some protozoa use cilia for locomotion.
- Cilia on the surface of epithelial cells help to move particles.
- Damage to cilia can lead to respiratory diseases.
Translations
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Interesting Facts
Biology
- Cilia are found in many organisms, including single-celled creatures and multi-cellular animals like humans.
- They play a crucial role in moving fluids across cell surfaces, like helping to clear mucus from the lungs.
- Some cells have specialized cilia that can sense environmental changes, acting like antennas for the cell.
Health
- Defective cilia can lead to health issues, such as respiratory problems or ciliary dyskinesia, affecting the movement of mucus.
- Certain diseases are linked to the malfunction of cilia, emphasizing their importance in human health.
Pop Culture
- Cilia have been featured in documentaries and educational programs, highlighting their role in cell biology.
- They are sometimes humorously referred to as 'cellular swimming fins' in popular science content.
Origin of 'cilium'
Main points about word origin
- The word 'cilium' comes from the Latin word for 'eyelash', emphasizing its fine, hair-like structure.
- Cilia were first described in the context of biological science in the mid-19th century as researchers studied small organisms.
The word 'cilium' originates from Latin, meaning 'eyelash' or 'sartor', referring to its hair-like appearance. It was introduced into scientific terminology in the 19th century as researchers began to study cellular structures under microscopes. The concept of cilia has evolved over time, as scientists uncovered their significance in cell movement and sensory functions. Significant advancements in microscopy and cellular biology have greatly expanded the understanding of cilia and their roles in both human physiology and the biology of other organisms, leading to further study into ciliary disorders and their implications on health.