cilium


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Related to cilium: selenium, psyllium husk

cilium

 [sil´e-um] (L.)
singular of cilia.

cil·i·um

, pl.

cil·i·a

(sil'ē-ŭm, -ă), Do not confuse this word with psyllium.
1. Synonym(s): eyelash
2. A motile extension of a cell surface, for example, of certain epithelial cells, containing nine longitudinal double microtubules arranged in a peripheral ring, together with a central pair.
[L. an eyelid]

cilium

/cil·i·um/ (sil´e-um) [L.] singular of cilia.

cilium

(sĭl′ē-əm)
n. pl. cil·ia (-ē-ə)
1. A microscopic hairlike process extending from the surface of a cell or unicellular organism. Capable of rhythmical motion, it acts in unison with other such structures to bring about the movement of the cell or of the surrounding medium.
2. An eyelash.
3. Botany One of the hairs along the margin or edge of a structure, such as a leaf, usually forming a fringe.

cilium

See cilia.

cil·i·um

, pl. cilia (sil'ē-ŭm, -ă)
1. Synonym(s): eyelash.
2. A motile extension of a cell surface, e.g., of certain epithelial cells, containing nine longitudinal double microtubules arranged in a peripheral ring, together with a central pair.
[L. an eyelid]
Ciliumclick for a larger image
Fig. 103 Cilium . (a) Vertical section. (b) Transverse section.

cilium

(pl. cilia) a fine cytoplasmic structure in the form of a thread which projects from the surface of cells. Each cell may bear numerous cilia which beat constantly in one direction, either moving liquid over the surface of the cells concerned or moving the cell(s) in relation to the liquid, for example, locomotion in PROTOZOANS. They are also present in all Metazoa except the ARTHROPODS and NEMATODES, but in only a few plants, for example, cycads. The cilium has a similar structure to the FLAGELLUM, consisting of an outer membrane surrounding a matrix containing two central MICROTUBULES around which is a ring of nine more microtubules (a ‘9 + 2’ structure). At the base of the cilium is a basal body concerned with ATP production.

cilium

motile extensions of some cell types (e.g. ciliated epithelium)

cilium 

An eyelash (plural: cilia).

cilium

pl. cilia [L.] see cilia.
References in periodicals archive ?
Long term inflammation associated with foreign bodies like embedded cilium may cause unusual presentations like symblepheron as in this case.
Ratios of angular velocities of cilium to particle were 1.
Furthermore, the possible implication of the cilium in planar cell polarity has also been addressed.
A cilium forms like a short drinking straw being pushed outwards from inside an inflated balloon.
Cilium movement and feeding events were observed with a compound microscope with DIC optics under 10X or 20X objective lens magnification.
When they added back a healthy form of polycystin-1 to our patient cells, it traveled to the cilium and brought its partner polycystin-2 with it, suggesting a possible therapeutic approach for PKD.
5-2 s; each long posterior cilium straightened at the instant it reached the side closest to the light source, and bent at the instant it reached the side furthest from the light source.
Working in collaboration with many ciliopathy labs worldwide, Davis sequenced a gene, TTC21B, known to be a critical component of the primary cilium, an antenna-like projection critical to cell function.
We fitted binomial regressions from the origin through the plot of particle velocity versus particle distance from the cilium base.
During the study, the researchers observed that the enzyme goes to a cellular structure known as the cilium, a long-forgotten organelle without clear function until recently.