microfilament

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microfilament

 [mi″kro-fil´ah-ment]
any of the submicroscopic filaments, composed chiefly of actin, found in the cytoplasmic matrix of almost all cells, often in close association with the microtubules.

mi·cro·fil·a·ment

(mī'krō-fil'ă-ment),
The finest filamentous element of the cytoskeleton, having a diameter of about 5 nm and consisting primarily of actin.
See also: actin filament.

microfilament

(mī′krō-fĭl′ə-mənt)
n.
Any of the actin-containing filaments that are found in the cytoplasm of eukaryotic cells and are involved in generating cell movement, providing structural support, and organizing internal cell components. Microfilaments, along with intermediate filaments and microtubules, make up a cell's cytoskeleton.

mi′cro·fil′a·men′tous (-mĕn′təs) adj.

microfilament

Any of a group of elongated, 5–7 nm in diameter, cytoplasmic fibres composed predominantly of actin, which form a cytoskeletal latticework.

mi·cro·fil·a·ment

(mī'krō-fil'ă-mĕnt)
The finest filamentous element of the cytoskeleton, having a diameter of about 5 nm and consisting primarily of actin.
See also: actin filament

microfilament

a fine, subcellular structure about 5–8 nm in diameter, composed of ACTIN or a similar protein and found in the cytoplasm of EUKARYOTE cells. Microfilaments are able to contract and are also involved in CYTOPLASMIC STREAMING and PHAGOCYTOSIS.
References in periodicals archive ?
Alpha smooth muscle actin, a differential marker of smooth cells, is present in the microfilamentous bundles of pericytes.
Peclet et al., "[alpha]-smooth muscle actin, a differentiation marker of smooth muscle cells, is present in microfilamentous bundles of pericytes," Journal of Histochemistry and Cytochemistry, vol.
In other invertebrate species, including many echinoderms, arthropods, and annelids (see review by Dan, 1967), an acrosomal process is extruded from the subacrosomal space after polymerization of fibrogranular material into a microfilamentous rod.