| microspike | <cell biology> Projections from the leading edge of some cells, particularly, but not exclusively, nerve growth cones. They are usually about 100 nm diameter, 5-10 m long and are supported by loosely bundled microfilaments. They are referred to by some authors as filopodia. Functionally a sort of linear version of a ruffle on a leading lamella. (18 Nov 1997) |
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